320139980

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{57787}}^1$

素因数の和:58073

約数の個数: 24

約数和(自身を含む): 674732688

約数和(自身を除く): 354592708

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 5540, 57787, 115574, 231148, 288935, 577870, 1155740, 16006999, 32013998, 64027996, 80034995, 160069990, 320139980]

約数ペア:

[(1, 320139980), (2, 160069990), (4, 80034995), (5, 64027996), (10, 32013998), (20, 16006999), (277, 1155740), (554, 577870), (1108, 288935), (1385, 231148), (2770, 115574), (5540, 57787)]