81546400

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7841}}^1$

素因数の和:7874

約数の個数: 72

約数和(自身を含む): 214415964

約数和(自身を除く): 132869564

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 2080, 2600, 5200, 7841, 10400, 15682, 31364, 39205, 62728, 78410, 101933, 125456, 156820, 196025, 203866, 250912, 313640, 392050, 407732, 509665, 627280, 784100, 815464, 1019330, 1254560, 1568200, 1630928, 2038660, 2548325, 3136400, 3261856, 4077320, 5096650, 6272800, 8154640, 10193300, 16309280, 20386600, 40773200, 81546400]

約数ペア:

[(1, 81546400), (2, 40773200), (4, 20386600), (5, 16309280), (8, 10193300), (10, 8154640), (13, 6272800), (16, 5096650), (20, 4077320), (25, 3261856), (26, 3136400), (32, 2548325), (40, 2038660), (50, 1630928), (52, 1568200), (65, 1254560), (80, 1019330), (100, 815464), (104, 784100), (130, 627280), (160, 509665), (200, 407732), (208, 392050), (260, 313640), (325, 250912), (400, 203866), (416, 196025), (520, 156820), (650, 125456), (800, 101933), (1040, 78410), (1300, 62728), (2080, 39205), (2600, 31364), (5200, 15682), (7841, 10400)]