842920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1621}}^1$

素因数の和:1645

約数の個数: 32

約数和(自身を含む): 2043720

約数和(自身を除く): 1200800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1621, 3242, 6484, 8105, 12968, 16210, 21073, 32420, 42146, 64840, 84292, 105365, 168584, 210730, 421460, 842920]

約数ペア:

[(1, 842920), (2, 421460), (4, 210730), (5, 168584), (8, 105365), (10, 84292), (13, 64840), (20, 42146), (26, 32420), (40, 21073), (52, 16210), (65, 12968), (104, 8105), (130, 6484), (260, 3242), (520, 1621)]