19622020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1129}}^1$

素因数の和:1228

約数の個数: 48

約数和(自身を含む): 45561600

約数和(自身を除く): 25939580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1129, 1580, 1738, 2258, 3476, 4345, 4516, 5645, 8690, 11290, 12419, 17380, 22580, 24838, 49676, 62095, 89191, 124190, 178382, 248380, 356764, 445955, 891910, 981101, 1783820, 1962202, 3924404, 4905505, 9811010, 19622020]

約数ペア:

[(1, 19622020), (2, 9811010), (4, 4905505), (5, 3924404), (10, 1962202), (11, 1783820), (20, 981101), (22, 891910), (44, 445955), (55, 356764), (79, 248380), (110, 178382), (158, 124190), (220, 89191), (316, 62095), (395, 49676), (790, 24838), (869, 22580), (1129, 17380), (1580, 12419), (1738, 11290), (2258, 8690), (3476, 5645), (4345, 4516)]