20214920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45943}}^1$

素因数の和:45965

約数の個数: 32

約数和(自身を含む): 49619520

約数和(自身を除く): 29404600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45943, 91886, 183772, 229715, 367544, 459430, 505373, 918860, 1010746, 1837720, 2021492, 2526865, 4042984, 5053730, 10107460, 20214920]

約数ペア:

[(1, 20214920), (2, 10107460), (4, 5053730), (5, 4042984), (8, 2526865), (10, 2021492), (11, 1837720), (20, 1010746), (22, 918860), (40, 505373), (44, 459430), (55, 367544), (88, 229715), (110, 183772), (220, 91886), (440, 45943)]