19763180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1571}}^1$

素因数の和:1634

約数の個数: 48

約数和(自身を含む): 45160416

約数和(自身を除く): 25397236

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 340, 370, 629, 740, 1258, 1571, 2516, 3142, 3145, 6284, 6290, 7855, 12580, 15710, 26707, 31420, 53414, 58127, 106828, 116254, 133535, 232508, 267070, 290635, 534140, 581270, 988159, 1162540, 1976318, 3952636, 4940795, 9881590, 19763180]

約数ペア:

[(1, 19763180), (2, 9881590), (4, 4940795), (5, 3952636), (10, 1976318), (17, 1162540), (20, 988159), (34, 581270), (37, 534140), (68, 290635), (74, 267070), (85, 232508), (148, 133535), (170, 116254), (185, 106828), (340, 58127), (370, 53414), (629, 31420), (740, 26707), (1258, 15710), (1571, 12580), (2516, 7855), (3142, 6290), (3145, 6284)]