121335880

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^2\times {\mathrm{157}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 276735420

約数和(自身を除く): 155399540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 157, 278, 314, 556, 628, 695, 785, 1112, 1256, 1390, 1570, 2780, 3140, 5560, 6280, 19321, 21823, 38642, 43646, 77284, 87292, 96605, 109115, 154568, 174584, 193210, 218230, 386420, 436460, 772840, 872920, 3033397, 6066794, 12133588, 15166985, 24267176, 30333970, 60667940, 121335880]

約数ペア:

[(1, 121335880), (2, 60667940), (4, 30333970), (5, 24267176), (8, 15166985), (10, 12133588), (20, 6066794), (40, 3033397), (139, 872920), (157, 772840), (278, 436460), (314, 386420), (556, 218230), (628, 193210), (695, 174584), (785, 154568), (1112, 109115), (1256, 96605), (1390, 87292), (1570, 77284), (2780, 43646), (3140, 38642), (5560, 21823), (6280, 19321)]