81865030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{2179}}^1$

素因数の和:2233

約数の個数: 48

約数和(自身を含む): 168653520

約数和(自身を除く): 86788490

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 289, 442, 578, 1105, 1445, 2179, 2210, 2890, 3757, 4358, 7514, 10895, 18785, 21790, 28327, 37043, 37570, 56654, 74086, 141635, 185215, 283270, 370430, 481559, 629731, 963118, 1259462, 2407795, 3148655, 4815590, 6297310, 8186503, 16373006, 40932515, 81865030]

約数ペア:

[(1, 81865030), (2, 40932515), (5, 16373006), (10, 8186503), (13, 6297310), (17, 4815590), (26, 3148655), (34, 2407795), (65, 1259462), (85, 963118), (130, 629731), (170, 481559), (221, 370430), (289, 283270), (442, 185215), (578, 141635), (1105, 74086), (1445, 56654), (2179, 37570), (2210, 37043), (2890, 28327), (3757, 21790), (4358, 18785), (7514, 10895)]