19912320720

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{161731}}^1$

素因数の和:161775

約数の個数: 200

約数和(自身を含む): 72798807840

約数和(自身を除く): 52886487120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 81, 90, 95, 108, 114, 120, 135, 144, 152, 162, 171, 180, 190, 216, 228, 240, 270, 285, 304, 324, 342, 360, 380, 405, 432, 456, 513, 540, 570, 648, 684, 720, 760, 810, 855, 912, 1026, 1080, 1140, 1296, 1368, 1520, 1539, 1620, 1710, 2052, 2160, 2280, 2565, 2736, 3078, 3240, 3420, 4104, 4560, 5130, 6156, 6480, 6840, 7695, 8208, 10260, 12312, 13680, 15390, 20520, 24624, 30780, 41040, 61560, 123120, 161731, 323462, 485193, 646924, 808655, 970386, 1293848, 1455579, 1617310, 1940772, 2425965, 2587696, 2911158, 3072889, 3234620, 3881544, 4366737, 4851930, 5822316, 6145778, 6469240, 7277895, 7763088, 8733474, 9218667, 9703860, 11644632, 12291556, 12938480, 13100211, 14555790, 15364445, 17466948, 18437334, 19407720, 21833685, 23289264, 24583112, 26200422, 27656001, 29111580, 30728890, 34933896, 36874668, 38815440, 43667370, 46093335, 49166224, 52400844, 55312002, 58223160, 61457780, 65501055, 69867792, 73749336, 82968003, 87334740, 92186670, 104801688, 110624004, 116446320, 122915560, 131002110, 138280005, 147498672, 165936006, 174669480, 184373340, 209603376, 221248008, 245831120, 248904009, 262004220, 276560010, 331872012, 349338960, 368746680, 414840015, 442496016, 497808018, 524008440, 553120020, 663744024, 737493360, 829680030, 995616036, 1048016880, 1106240040, 1244520045, 1327488048, 1659360060, 1991232072, 2212480080, 2489040090, 3318720120, 3982464144, 4978080180, 6637440240, 9956160360, 19912320720]

約数ペア:

[(1, 19912320720), (2, 9956160360), (3, 6637440240), (4, 4978080180), (5, 3982464144), (6, 3318720120), (8, 2489040090), (9, 2212480080), (10, 1991232072), (12, 1659360060), (15, 1327488048), (16, 1244520045), (18, 1106240040), (19, 1048016880), (20, 995616036), (24, 829680030), (27, 737493360), (30, 663744024), (36, 553120020), (38, 524008440), (40, 497808018), (45, 442496016), (48, 414840015), (54, 368746680), (57, 349338960), (60, 331872012), (72, 276560010), (76, 262004220), (80, 248904009), (81, 245831120), (90, 221248008), (95, 209603376), (108, 184373340), (114, 174669480), (120, 165936006), (135, 147498672), (144, 138280005), (152, 131002110), (162, 122915560), (171, 116446320), (180, 110624004), (190, 104801688), (216, 92186670), (228, 87334740), (240, 82968003), (270, 73749336), (285, 69867792), (304, 65501055), (324, 61457780), (342, 58223160), (360, 55312002), (380, 52400844), (405, 49166224), (432, 46093335), (456, 43667370), (513, 38815440), (540, 36874668), (570, 34933896), (648, 30728890), (684, 29111580), (720, 27656001), (760, 26200422), (810, 24583112), (855, 23289264), (912, 21833685), (1026, 19407720), (1080, 18437334), (1140, 17466948), (1296, 15364445), (1368, 14555790), (1520, 13100211), (1539, 12938480), (1620, 12291556), (1710, 11644632), (2052, 9703860), (2160, 9218667), (2280, 8733474), (2565, 7763088), (2736, 7277895), (3078, 6469240), (3240, 6145778), (3420, 5822316), (4104, 4851930), (4560, 4366737), (5130, 3881544), (6156, 3234620), (6480, 3072889), (6840, 2911158), (7695, 2587696), (8208, 2425965), (10260, 1940772), (12312, 1617310), (13680, 1455579), (15390, 1293848), (20520, 970386), (24624, 808655), (30780, 646924), (41040, 485193), (61560, 323462), (123120, 161731)]