4000040

素因数分解:

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

素因数の和:9113

約数の個数: 32

約数和(自身を含む): 9819360

約数和(自身を除く): 5819320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 9091, 18182, 36364, 45455, 72728, 90910, 100001, 181820, 200002, 363640, 400004, 500005, 800008, 1000010, 2000020, 4000040]

約数ペア:

[(1, 4000040), (2, 2000020), (4, 1000010), (5, 800008), (8, 500005), (10, 400004), (11, 363640), (20, 200002), (22, 181820), (40, 100001), (44, 90910), (55, 72728), (88, 45455), (110, 36364), (220, 18182), (440, 9091)]