19553480

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2999}}^1$

素因数の和:3173

約数の個数: 32

約数和(自身を含む): 44280000

約数和(自身を除く): 24726520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 2999, 3260, 5998, 6520, 11996, 14995, 23992, 29990, 59980, 119960, 488837, 977674, 1955348, 2444185, 3910696, 4888370, 9776740, 19553480]

約数ペア:

[(1, 19553480), (2, 9776740), (4, 4888370), (5, 3910696), (8, 2444185), (10, 1955348), (20, 977674), (40, 488837), (163, 119960), (326, 59980), (652, 29990), (815, 23992), (1304, 14995), (1630, 11996), (2999, 6520), (3260, 5998)]