19361980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 48771072

約数和(自身を除く): 29409092

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 31, 34, 44, 55, 62, 68, 85, 110, 124, 155, 167, 170, 187, 220, 310, 334, 340, 341, 374, 527, 620, 668, 682, 748, 835, 935, 1054, 1364, 1670, 1705, 1837, 1870, 2108, 2635, 2839, 3340, 3410, 3674, 3740, 5177, 5270, 5678, 5797, 6820, 7348, 9185, 10354, 10540, 11356, 11594, 14195, 18370, 20708, 23188, 25885, 28390, 28985, 31229, 36740, 51770, 56780, 56947, 57970, 62458, 88009, 103540, 113894, 115940, 124916, 156145, 176018, 227788, 284735, 312290, 352036, 440045, 569470, 624580, 880090, 968099, 1138940, 1760180, 1936198, 3872396, 4840495, 9680990, 19361980]

約数ペア:

[(1, 19361980), (2, 9680990), (4, 4840495), (5, 3872396), (10, 1936198), (11, 1760180), (17, 1138940), (20, 968099), (22, 880090), (31, 624580), (34, 569470), (44, 440045), (55, 352036), (62, 312290), (68, 284735), (85, 227788), (110, 176018), (124, 156145), (155, 124916), (167, 115940), (170, 113894), (187, 103540), (220, 88009), (310, 62458), (334, 57970), (340, 56947), (341, 56780), (374, 51770), (527, 36740), (620, 31229), (668, 28985), (682, 28390), (748, 25885), (835, 23188), (935, 20708), (1054, 18370), (1364, 14195), (1670, 11594), (1705, 11356), (1837, 10540), (1870, 10354), (2108, 9185), (2635, 7348), (2839, 6820), (3340, 5797), (3410, 5678), (3674, 5270), (3740, 5177)]