12883660

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 28207872

約数和(自身を除く): 15324212

約数列:

[1, 2, 4, 5, 10, 20, 43, 71, 86, 142, 172, 211, 215, 284, 355, 422, 430, 710, 844, 860, 1055, 1420, 2110, 3053, 4220, 6106, 9073, 12212, 14981, 15265, 18146, 29962, 30530, 36292, 45365, 59924, 61060, 74905, 90730, 149810, 181460, 299620, 644183, 1288366, 2576732, 3220915, 6441830, 12883660]

約数ペア:

[(1, 12883660), (2, 6441830), (4, 3220915), (5, 2576732), (10, 1288366), (20, 644183), (43, 299620), (71, 181460), (86, 149810), (142, 90730), (172, 74905), (211, 61060), (215, 59924), (284, 45365), (355, 36292), (422, 30530), (430, 29962), (710, 18146), (844, 15265), (860, 14981), (1055, 12212), (1420, 9073), (2110, 6106), (3053, 4220)]