19743460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5279}}^1$

素因数の和:5316

約数の個数: 48

約数和(自身を含む): 47900160

約数和(自身を除く): 28156700

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, 5279, 10558, 21116, 26395, 52790, 58069, 89743, 105580, 116138, 179486, 232276, 290345, 358972, 448715, 580690, 897430, 987173, 1161380, 1794860, 1974346, 3948692, 4935865, 9871730, 19743460]

約数ペア:

[(1, 19743460), (2, 9871730), (4, 4935865), (5, 3948692), (10, 1974346), (11, 1794860), (17, 1161380), (20, 987173), (22, 897430), (34, 580690), (44, 448715), (55, 358972), (68, 290345), (85, 232276), (110, 179486), (170, 116138), (187, 105580), (220, 89743), (340, 58069), (374, 52790), (748, 26395), (935, 21116), (1870, 10558), (3740, 5279)]