31543460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{121321}}^1$

素因数の和:121343

約数の個数: 24

約数和(自身を含む): 71337336

約数和(自身を除く): 39793876

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 121321, 242642, 485284, 606605, 1213210, 1577173, 2426420, 3154346, 6308692, 7885865, 15771730, 31543460]

約数ペア:

[(1, 31543460), (2, 15771730), (4, 7885865), (5, 6308692), (10, 3154346), (13, 2426420), (20, 1577173), (26, 1213210), (52, 606605), (65, 485284), (130, 242642), (260, 121321)]