7238920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13921}}^1$

素因数の和:13945

約数の個数: 32

約数和(自身を含む): 17541720

約数和(自身を除く): 10302800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 13921, 27842, 55684, 69605, 111368, 139210, 180973, 278420, 361946, 556840, 723892, 904865, 1447784, 1809730, 3619460, 7238920]

約数ペア:

[(1, 7238920), (2, 3619460), (4, 1809730), (5, 1447784), (8, 904865), (10, 723892), (13, 556840), (20, 361946), (26, 278420), (40, 180973), (52, 139210), (65, 111368), (104, 69605), (130, 55684), (260, 27842), (520, 13921)]