242880040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:148

約数の個数: 192

約数和(自身を含む): 653529600

約数和(自身を除く): 410649560

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 31, 38, 40, 52, 61, 62, 65, 76, 95, 104, 122, 124, 130, 152, 155, 169, 190, 244, 247, 248, 260, 305, 310, 338, 380, 403, 488, 494, 520, 589, 610, 620, 676, 760, 793, 806, 845, 988, 1159, 1178, 1220, 1235, 1240, 1352, 1586, 1612, 1690, 1891, 1976, 2015, 2318, 2356, 2440, 2470, 2945, 3172, 3211, 3224, 3380, 3782, 3965, 4030, 4636, 4712, 4940, 5239, 5795, 5890, 6344, 6422, 6760, 7564, 7657, 7930, 8060, 9272, 9455, 9880, 10309, 10478, 11590, 11780, 12844, 15067, 15128, 15314, 15860, 16055, 16120, 18910, 20618, 20956, 23180, 23560, 24583, 25688, 26195, 30134, 30628, 31720, 32110, 35929, 37820, 38285, 41236, 41912, 46360, 49166, 51545, 52390, 60268, 61256, 64220, 71858, 75335, 75640, 76570, 82472, 98332, 99541, 103090, 104780, 120536, 122915, 128440, 143716, 150670, 153140, 179645, 195871, 196664, 199082, 206180, 209560, 245830, 287432, 301340, 306280, 319579, 359290, 391742, 398164, 412360, 467077, 491660, 497705, 602680, 639158, 718580, 783484, 796328, 934154, 979355, 983320, 995410, 1278316, 1437160, 1566968, 1597895, 1868308, 1958710, 1990820, 2335385, 2556632, 3195790, 3736616, 3917420, 3981640, 4670770, 6072001, 6391580, 7834840, 9341540, 12144002, 12783160, 18683080, 24288004, 30360005, 48576008, 60720010, 121440020, 242880040]

約数ペア:

[(1, 242880040), (2, 121440020), (4, 60720010), (5, 48576008), (8, 30360005), (10, 24288004), (13, 18683080), (19, 12783160), (20, 12144002), (26, 9341540), (31, 7834840), (38, 6391580), (40, 6072001), (52, 4670770), (61, 3981640), (62, 3917420), (65, 3736616), (76, 3195790), (95, 2556632), (104, 2335385), (122, 1990820), (124, 1958710), (130, 1868308), (152, 1597895), (155, 1566968), (169, 1437160), (190, 1278316), (244, 995410), (247, 983320), (248, 979355), (260, 934154), (305, 796328), (310, 783484), (338, 718580), (380, 639158), (403, 602680), (488, 497705), (494, 491660), (520, 467077), (589, 412360), (610, 398164), (620, 391742), (676, 359290), (760, 319579), (793, 306280), (806, 301340), (845, 287432), (988, 245830), (1159, 209560), (1178, 206180), (1220, 199082), (1235, 196664), (1240, 195871), (1352, 179645), (1586, 153140), (1612, 150670), (1690, 143716), (1891, 128440), (1976, 122915), (2015, 120536), (2318, 104780), (2356, 103090), (2440, 99541), (2470, 98332), (2945, 82472), (3172, 76570), (3211, 75640), (3224, 75335), (3380, 71858), (3782, 64220), (3965, 61256), (4030, 60268), (4636, 52390), (4712, 51545), (4940, 49166), (5239, 46360), (5795, 41912), (5890, 41236), (6344, 38285), (6422, 37820), (6760, 35929), (7564, 32110), (7657, 31720), (7930, 30628), (8060, 30134), (9272, 26195), (9455, 25688), (9880, 24583), (10309, 23560), (10478, 23180), (11590, 20956), (11780, 20618), (12844, 18910), (15067, 16120), (15128, 16055), (15314, 15860)]