80318680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{154459}}^1$

素因数の和:154483

約数の個数: 32

約数和(自身を含む): 194619600

約数和(自身を除く): 114300920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 154459, 308918, 617836, 772295, 1235672, 1544590, 2007967, 3089180, 4015934, 6178360, 8031868, 10039835, 16063736, 20079670, 40159340, 80318680]

約数ペア:

[(1, 80318680), (2, 40159340), (4, 20079670), (5, 16063736), (8, 10039835), (10, 8031868), (13, 6178360), (20, 4015934), (26, 3089180), (40, 2007967), (52, 1544590), (65, 1235672), (104, 772295), (130, 617836), (260, 308918), (520, 154459)]