55241380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{641}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 120798720

約数和(自身を除く): 65557340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 139, 155, 278, 310, 556, 620, 641, 695, 1282, 1390, 2564, 2780, 3205, 4309, 6410, 8618, 12820, 17236, 19871, 21545, 39742, 43090, 79484, 86180, 89099, 99355, 178198, 198710, 356396, 397420, 445495, 890990, 1781980, 2762069, 5524138, 11048276, 13810345, 27620690, 55241380]

約数ペア:

[(1, 55241380), (2, 27620690), (4, 13810345), (5, 11048276), (10, 5524138), (20, 2762069), (31, 1781980), (62, 890990), (124, 445495), (139, 397420), (155, 356396), (278, 198710), (310, 178198), (556, 99355), (620, 89099), (641, 86180), (695, 79484), (1282, 43090), (1390, 39742), (2564, 21545), (2780, 19871), (3205, 17236), (4309, 12820), (6410, 8618)]