201871780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{2129}}^1$

素因数の和:2580

約数の個数: 48

約数和(自身を含む): 463760640

約数和(自身を除く): 261888860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 431, 862, 1724, 2129, 2155, 4258, 4310, 4741, 8516, 8620, 9482, 10645, 18964, 21290, 23419, 23705, 42580, 46838, 47410, 93676, 94820, 117095, 234190, 468380, 917599, 1835198, 3670396, 4587995, 9175990, 10093589, 18351980, 20187178, 40374356, 50467945, 100935890, 201871780]

約数ペア:

[(1, 201871780), (2, 100935890), (4, 50467945), (5, 40374356), (10, 20187178), (11, 18351980), (20, 10093589), (22, 9175990), (44, 4587995), (55, 3670396), (110, 1835198), (220, 917599), (431, 468380), (862, 234190), (1724, 117095), (2129, 94820), (2155, 93676), (4258, 47410), (4310, 46838), (4741, 42580), (8516, 23705), (8620, 23419), (9482, 21290), (10645, 18964)]