20341945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 28576800

約数和(自身を除く): 8234855

約数列:

[1, 5, 13, 17, 41, 65, 85, 205, 221, 449, 533, 697, 1105, 2245, 2665, 3485, 5837, 7633, 9061, 18409, 29185, 38165, 45305, 92045, 99229, 239317, 312953, 496145, 1196585, 1564765, 4068389, 20341945]

約数ペア:

[(1, 20341945), (5, 4068389), (13, 1564765), (17, 1196585), (41, 496145), (65, 312953), (85, 239317), (205, 99229), (221, 92045), (449, 45305), (533, 38165), (697, 29185), (1105, 18409), (2245, 9061), (2665, 7633), (3485, 5837)]