15221840

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1277}}^1$

素因数の和:1439

約数の個数: 40

約数和(自身を含む): 35656200

約数和(自身を除く): 20434360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1277, 1490, 2384, 2554, 2980, 5108, 5960, 6385, 10216, 11920, 12770, 20432, 25540, 51080, 102160, 190273, 380546, 761092, 951365, 1522184, 1902730, 3044368, 3805460, 7610920, 15221840]

約数ペア:

[(1, 15221840), (2, 7610920), (4, 3805460), (5, 3044368), (8, 1902730), (10, 1522184), (16, 951365), (20, 761092), (40, 380546), (80, 190273), (149, 102160), (298, 51080), (596, 25540), (745, 20432), (1192, 12770), (1277, 11920), (1490, 10216), (2384, 6385), (2554, 5960), (2980, 5108)]