20740408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11731}}^1$

素因数の和:11767

約数の個数: 32

約数和(自身を含む): 44346960

約数和(自身を除く): 23606552

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 11731, 23462, 46924, 93848, 152503, 199427, 305006, 398854, 610012, 797708, 1220024, 1595416, 2592551, 5185102, 10370204, 20740408]

約数ペア:

[(1, 20740408), (2, 10370204), (4, 5185102), (8, 2592551), (13, 1595416), (17, 1220024), (26, 797708), (34, 610012), (52, 398854), (68, 305006), (104, 199427), (136, 152503), (221, 93848), (442, 46924), (884, 23462), (1768, 11731)]