19571420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5233}}^1$

素因数の和:5270

約数の個数: 48

約数和(自身を含む): 47482848

約数和(自身を除く): 27911428

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 5233, 10466, 20932, 26165, 52330, 57563, 88961, 104660, 115126, 177922, 230252, 287815, 355844, 444805, 575630, 889610, 978571, 1151260, 1779220, 1957142, 3914284, 4892855, 9785710, 19571420]

約数ペア:

[(1, 19571420), (2, 9785710), (4, 4892855), (5, 3914284), (10, 1957142), (11, 1779220), (17, 1151260), (20, 978571), (22, 889610), (34, 575630), (44, 444805), (55, 355844), (68, 287815), (85, 230252), (110, 177922), (170, 115126), (187, 104660), (220, 88961), (340, 57563), (374, 52330), (748, 26165), (935, 20932), (1870, 10466), (3740, 5233)]