31312840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{60217}}^1$

素因数の和:60241

約数の個数: 32

約数和(自身を含む): 75874680

約数和(自身を除く): 44561840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 60217, 120434, 240868, 301085, 481736, 602170, 782821, 1204340, 1565642, 2408680, 3131284, 3914105, 6262568, 7828210, 15656420, 31312840]

約数ペア:

[(1, 31312840), (2, 15656420), (4, 7828210), (5, 6262568), (8, 3914105), (10, 3131284), (13, 2408680), (20, 1565642), (26, 1204340), (40, 782821), (52, 602170), (65, 481736), (104, 301085), (130, 240868), (260, 120434), (520, 60217)]