20000200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9091}}^1$

素因数の和:9118

約数の個数: 48

約数和(自身を含む): 50733360

約数和(自身を除く): 30733160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 9091, 18182, 36364, 45455, 72728, 90910, 100001, 181820, 200002, 227275, 363640, 400004, 454550, 500005, 800008, 909100, 1000010, 1818200, 2000020, 2500025, 4000040, 5000050, 10000100, 20000200]

約数ペア:

[(1, 20000200), (2, 10000100), (4, 5000050), (5, 4000040), (8, 2500025), (10, 2000020), (11, 1818200), (20, 1000010), (22, 909100), (25, 800008), (40, 500005), (44, 454550), (50, 400004), (55, 363640), (88, 227275), (100, 200002), (110, 181820), (200, 100001), (220, 90910), (275, 72728), (440, 45455), (550, 36364), (1100, 18182), (2200, 9091)]