2100000040

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{352349}}^1$

素因数の和:352509

約数の個数: 32

約数和(自身を含む): 4756725000

約数和(自身を除く): 2656724960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 352349, 704698, 1409396, 1761745, 2818792, 3523490, 7046980, 14093960, 52500001, 105000002, 210000004, 262500005, 420000008, 525000010, 1050000020, 2100000040]

約数ペア:

[(1, 2100000040), (2, 1050000020), (4, 525000010), (5, 420000008), (8, 262500005), (10, 210000004), (20, 105000002), (40, 52500001), (149, 14093960), (298, 7046980), (596, 3523490), (745, 2818792), (1192, 1761745), (1490, 1409396), (2980, 704698), (5960, 352349)]