280807730

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{263}}^1\times {\mathrm{2179}}^1$

素因数の和:2463

約数の個数: 48

約数和(自身を含む): 590483520

約数和(自身を除く): 309675790

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 263, 490, 526, 1315, 1841, 2179, 2630, 3682, 4358, 9205, 10895, 12887, 15253, 18410, 21790, 25774, 30506, 64435, 76265, 106771, 128870, 152530, 213542, 533855, 573077, 1067710, 1146154, 2865385, 4011539, 5730770, 8023078, 20057695, 28080773, 40115390, 56161546, 140403865, 280807730]

約数ペア:

[(1, 280807730), (2, 140403865), (5, 56161546), (7, 40115390), (10, 28080773), (14, 20057695), (35, 8023078), (49, 5730770), (70, 4011539), (98, 2865385), (245, 1146154), (263, 1067710), (490, 573077), (526, 533855), (1315, 213542), (1841, 152530), (2179, 128870), (2630, 106771), (3682, 76265), (4358, 64435), (9205, 30506), (10895, 25774), (12887, 21790), (15253, 18410)]