20172975720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{353}}^1$

素因数の和:676

約数の個数: 256

約数和(自身を含む): 63652711680

約数和(自身を除く): 43479735960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 61, 74, 111, 120, 122, 148, 183, 185, 211, 222, 244, 296, 305, 353, 366, 370, 422, 444, 488, 555, 610, 633, 706, 732, 740, 844, 888, 915, 1055, 1059, 1110, 1220, 1266, 1412, 1464, 1480, 1688, 1765, 1830, 2110, 2118, 2220, 2257, 2440, 2532, 2824, 3165, 3530, 3660, 4220, 4236, 4440, 4514, 5064, 5295, 6330, 6771, 7060, 7320, 7807, 8440, 8472, 9028, 10590, 11285, 12660, 12871, 13061, 13542, 14120, 15614, 18056, 21180, 21533, 22570, 23421, 25320, 25742, 26122, 27084, 31228, 33855, 38613, 39035, 39183, 42360, 43066, 45140, 46842, 51484, 52244, 54168, 62456, 64355, 64599, 65305, 67710, 74483, 77226, 78070, 78366, 86132, 90280, 93684, 102968, 104488, 107665, 117105, 128710, 129198, 130610, 135420, 148966, 154452, 156140, 156732, 172264, 187368, 193065, 195915, 215330, 223449, 234210, 257420, 258396, 261220, 270840, 297932, 308904, 312280, 313464, 322995, 372415, 386130, 391830, 430660, 446898, 468420, 476227, 514840, 516792, 522440, 595864, 645990, 744830, 772260, 783660, 796721, 861320, 893796, 936840, 952454, 1117245, 1291980, 1428681, 1489660, 1544520, 1567320, 1593442, 1787592, 1904908, 2234490, 2381135, 2390163, 2583960, 2755871, 2857362, 2979320, 3186884, 3809816, 3983605, 4468980, 4543463, 4762270, 4780326, 5511742, 5714724, 6373768, 7143405, 7967210, 8267613, 8937960, 9086926, 9524540, 9560652, 11023484, 11429448, 11950815, 13630389, 13779355, 14286810, 15934420, 16535226, 18173852, 19049080, 19121304, 22046968, 22717315, 23901630, 27260778, 27558710, 28573620, 31868840, 33070452, 36347704, 41338065, 45434630, 47803260, 54521556, 55117420, 57147240, 66140904, 68151945, 82676130, 90869260, 95606520, 109043112, 110234840, 136303890, 165352260, 168108131, 181738520, 272607780, 330704520, 336216262, 504324393, 545215560, 672432524, 840540655, 1008648786, 1344865048, 1681081310, 2017297572, 2521621965, 3362162620, 4034595144, 5043243930, 6724325240, 10086487860, 20172975720]

約数ペア:

[(1, 20172975720), (2, 10086487860), (3, 6724325240), (4, 5043243930), (5, 4034595144), (6, 3362162620), (8, 2521621965), (10, 2017297572), (12, 1681081310), (15, 1344865048), (20, 1008648786), (24, 840540655), (30, 672432524), (37, 545215560), (40, 504324393), (60, 336216262), (61, 330704520), (74, 272607780), (111, 181738520), (120, 168108131), (122, 165352260), (148, 136303890), (183, 110234840), (185, 109043112), (211, 95606520), (222, 90869260), (244, 82676130), (296, 68151945), (305, 66140904), (353, 57147240), (366, 55117420), (370, 54521556), (422, 47803260), (444, 45434630), (488, 41338065), (555, 36347704), (610, 33070452), (633, 31868840), (706, 28573620), (732, 27558710), (740, 27260778), (844, 23901630), (888, 22717315), (915, 22046968), (1055, 19121304), (1059, 19049080), (1110, 18173852), (1220, 16535226), (1266, 15934420), (1412, 14286810), (1464, 13779355), (1480, 13630389), (1688, 11950815), (1765, 11429448), (1830, 11023484), (2110, 9560652), (2118, 9524540), (2220, 9086926), (2257, 8937960), (2440, 8267613), (2532, 7967210), (2824, 7143405), (3165, 6373768), (3530, 5714724), (3660, 5511742), (4220, 4780326), (4236, 4762270), (4440, 4543463), (4514, 4468980), (5064, 3983605), (5295, 3809816), (6330, 3186884), (6771, 2979320), (7060, 2857362), (7320, 2755871), (7807, 2583960), (8440, 2390163), (8472, 2381135), (9028, 2234490), (10590, 1904908), (11285, 1787592), (12660, 1593442), (12871, 1567320), (13061, 1544520), (13542, 1489660), (14120, 1428681), (15614, 1291980), (18056, 1117245), (21180, 952454), (21533, 936840), (22570, 893796), (23421, 861320), (25320, 796721), (25742, 783660), (26122, 772260), (27084, 744830), (31228, 645990), (33855, 595864), (38613, 522440), (39035, 516792), (39183, 514840), (42360, 476227), (43066, 468420), (45140, 446898), (46842, 430660), (51484, 391830), (52244, 386130), (54168, 372415), (62456, 322995), (64355, 313464), (64599, 312280), (65305, 308904), (67710, 297932), (74483, 270840), (77226, 261220), (78070, 258396), (78366, 257420), (86132, 234210), (90280, 223449), (93684, 215330), (102968, 195915), (104488, 193065), (107665, 187368), (117105, 172264), (128710, 156732), (129198, 156140), (130610, 154452), (135420, 148966)]