31521230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{839}}^1$

素因数の和:893

約数の個数: 48

約数和(自身を含む): 64985760

約数和(自身を除く): 33464530

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 289, 442, 578, 839, 1105, 1445, 1678, 2210, 2890, 3757, 4195, 7514, 8390, 10907, 14263, 18785, 21814, 28526, 37570, 54535, 71315, 109070, 142630, 185419, 242471, 370838, 484942, 927095, 1212355, 1854190, 2424710, 3152123, 6304246, 15760615, 31521230]

約数ペア:

[(1, 31521230), (2, 15760615), (5, 6304246), (10, 3152123), (13, 2424710), (17, 1854190), (26, 1212355), (34, 927095), (65, 484942), (85, 370838), (130, 242471), (170, 185419), (221, 142630), (289, 109070), (442, 71315), (578, 54535), (839, 37570), (1105, 28526), (1445, 21814), (1678, 18785), (2210, 14263), (2890, 10907), (3757, 8390), (4195, 7514)]