88781680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4493}}^1$

素因数の和:4538

約数の個数: 80

約数和(自身を含む): 234047520

約数和(自身を除く): 145265840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3952, 4493, 4940, 8986, 9880, 17972, 19760, 22465, 35944, 44930, 58409, 71888, 85367, 89860, 116818, 170734, 179720, 233636, 292045, 341468, 359440, 426835, 467272, 584090, 682936, 853670, 934544, 1109771, 1168180, 1365872, 1707340, 2219542, 2336360, 3414680, 4439084, 4672720, 5548855, 6829360, 8878168, 11097710, 17756336, 22195420, 44390840, 88781680]

約数ペア:

[(1, 88781680), (2, 44390840), (4, 22195420), (5, 17756336), (8, 11097710), (10, 8878168), (13, 6829360), (16, 5548855), (19, 4672720), (20, 4439084), (26, 3414680), (38, 2336360), (40, 2219542), (52, 1707340), (65, 1365872), (76, 1168180), (80, 1109771), (95, 934544), (104, 853670), (130, 682936), (152, 584090), (190, 467272), (208, 426835), (247, 359440), (260, 341468), (304, 292045), (380, 233636), (494, 179720), (520, 170734), (760, 116818), (988, 89860), (1040, 85367), (1235, 71888), (1520, 58409), (1976, 44930), (2470, 35944), (3952, 22465), (4493, 19760), (4940, 17972), (8986, 9880)]