3962920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7621}}^1$

素因数の和:7645

約数の個数: 32

約数和(自身を含む): 9603720

約数和(自身を除く): 5640800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 7621, 15242, 30484, 38105, 60968, 76210, 99073, 152420, 198146, 304840, 396292, 495365, 792584, 990730, 1981460, 3962920]

約数ペア:

[(1, 3962920), (2, 1981460), (4, 990730), (5, 792584), (8, 495365), (10, 396292), (13, 304840), (20, 198146), (26, 152420), (40, 99073), (52, 76210), (65, 60968), (104, 38105), (130, 30484), (260, 15242), (520, 7621)]