257424080

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{54539}}^1$

素因数の和:54611

約数の個数: 40

約数和(自身を含む): 608666400

約数和(自身を除く): 351242320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4720, 54539, 109078, 218156, 272695, 436312, 545390, 872624, 1090780, 2181560, 3217801, 4363120, 6435602, 12871204, 16089005, 25742408, 32178010, 51484816, 64356020, 128712040, 257424080]

約数ペア:

[(1, 257424080), (2, 128712040), (4, 64356020), (5, 51484816), (8, 32178010), (10, 25742408), (16, 16089005), (20, 12871204), (40, 6435602), (59, 4363120), (80, 3217801), (118, 2181560), (236, 1090780), (295, 872624), (472, 545390), (590, 436312), (944, 272695), (1180, 218156), (2360, 109078), (4720, 54539)]