72858890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{2131}}^1$

素因数の和:2414

約数の個数: 32

約数和(自身を含む): 141837696

約数和(自身を除く): 68978806

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 263, 526, 1315, 2131, 2630, 3419, 4262, 6838, 10655, 17095, 21310, 27703, 34190, 55406, 138515, 277030, 560453, 1120906, 2802265, 5604530, 7285889, 14571778, 36429445, 72858890]

約数ペア:

[(1, 72858890), (2, 36429445), (5, 14571778), (10, 7285889), (13, 5604530), (26, 2802265), (65, 1120906), (130, 560453), (263, 277030), (526, 138515), (1315, 55406), (2131, 34190), (2630, 27703), (3419, 21310), (4262, 17095), (6838, 10655)]