31303480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1627}}^1$

素因数の和:1688

約数の個数: 64

約数和(自身を含む): 77948640

約数和(自身を除く): 46645160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 1480, 1627, 1924, 2405, 3254, 3848, 4810, 6508, 8135, 9620, 13016, 16270, 19240, 21151, 32540, 42302, 60199, 65080, 84604, 105755, 120398, 169208, 211510, 240796, 300995, 423020, 481592, 601990, 782587, 846040, 1203980, 1565174, 2407960, 3130348, 3912935, 6260696, 7825870, 15651740, 31303480]

約数ペア:

[(1, 31303480), (2, 15651740), (4, 7825870), (5, 6260696), (8, 3912935), (10, 3130348), (13, 2407960), (20, 1565174), (26, 1203980), (37, 846040), (40, 782587), (52, 601990), (65, 481592), (74, 423020), (104, 300995), (130, 240796), (148, 211510), (185, 169208), (260, 120398), (296, 105755), (370, 84604), (481, 65080), (520, 60199), (740, 42302), (962, 32540), (1480, 21151), (1627, 19240), (1924, 16270), (2405, 13016), (3254, 9620), (3848, 8135), (4810, 6508)]