90221780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{13229}}^1$

素因数の和:13280

約数の個数: 48

約数和(自身を含む): 213373440

約数和(自身を除く): 123151660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 13229, 26458, 52916, 66145, 132290, 145519, 264580, 291038, 410099, 582076, 727595, 820198, 1455190, 1640396, 2050495, 2910380, 4100990, 4511089, 8201980, 9022178, 18044356, 22555445, 45110890, 90221780]

約数ペア:

[(1, 90221780), (2, 45110890), (4, 22555445), (5, 18044356), (10, 9022178), (11, 8201980), (20, 4511089), (22, 4100990), (31, 2910380), (44, 2050495), (55, 1640396), (62, 1455190), (110, 820198), (124, 727595), (155, 582076), (220, 410099), (310, 291038), (341, 264580), (620, 145519), (682, 132290), (1364, 66145), (1705, 52916), (3410, 26458), (6820, 13229)]