10520780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 23224320

約数和(自身を除く): 12703540

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 239, 284, 310, 355, 478, 620, 710, 956, 1195, 1420, 2201, 2390, 4402, 4780, 7409, 8804, 11005, 14818, 16969, 22010, 29636, 33938, 37045, 44020, 67876, 74090, 84845, 148180, 169690, 339380, 526039, 1052078, 2104156, 2630195, 5260390, 10520780]

約数ペア:

[(1, 10520780), (2, 5260390), (4, 2630195), (5, 2104156), (10, 1052078), (20, 526039), (31, 339380), (62, 169690), (71, 148180), (124, 84845), (142, 74090), (155, 67876), (239, 44020), (284, 37045), (310, 33938), (355, 29636), (478, 22010), (620, 16969), (710, 14818), (956, 11005), (1195, 8804), (1420, 7409), (2201, 4780), (2390, 4402)]