1380821520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{442571}}^1$

素因数の和:442600

約数の個数: 80

約数和(自身を含む): 4609829952

約数和(自身を除く): 3229008432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 442571, 885142, 1327713, 1770284, 2212855, 2655426, 3540568, 4425710, 5310852, 5753423, 6638565, 7081136, 8851420, 10621704, 11506846, 13277130, 17260269, 17702840, 21243408, 23013692, 26554260, 28767115, 34520538, 35405680, 46027384, 53108520, 57534230, 69041076, 86301345, 92054768, 106217040, 115068460, 138082152, 172602690, 230136920, 276164304, 345205380, 460273840, 690410760, 1380821520]

約数ペア:

[(1, 1380821520), (2, 690410760), (3, 460273840), (4, 345205380), (5, 276164304), (6, 230136920), (8, 172602690), (10, 138082152), (12, 115068460), (13, 106217040), (15, 92054768), (16, 86301345), (20, 69041076), (24, 57534230), (26, 53108520), (30, 46027384), (39, 35405680), (40, 34520538), (48, 28767115), (52, 26554260), (60, 23013692), (65, 21243408), (78, 17702840), (80, 17260269), (104, 13277130), (120, 11506846), (130, 10621704), (156, 8851420), (195, 7081136), (208, 6638565), (240, 5753423), (260, 5310852), (312, 4425710), (390, 3540568), (520, 2655426), (624, 2212855), (780, 1770284), (1040, 1327713), (1560, 885142), (3120, 442571)]