20580404

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{751}}^1$

素因数の和:816

約数の個数: 48

約数和(自身を含む): 42448896

約数和(自身を除く): 21868492

約数列:

[1, 2, 4, 13, 17, 26, 31, 34, 52, 62, 68, 124, 221, 403, 442, 527, 751, 806, 884, 1054, 1502, 1612, 2108, 3004, 6851, 9763, 12767, 13702, 19526, 23281, 25534, 27404, 39052, 46562, 51068, 93124, 165971, 302653, 331942, 395777, 605306, 663884, 791554, 1210612, 1583108, 5145101, 10290202, 20580404]

約数ペア:

[(1, 20580404), (2, 10290202), (4, 5145101), (13, 1583108), (17, 1210612), (26, 791554), (31, 663884), (34, 605306), (52, 395777), (62, 331942), (68, 302653), (124, 165971), (221, 93124), (403, 51068), (442, 46562), (527, 39052), (751, 27404), (806, 25534), (884, 23281), (1054, 19526), (1502, 13702), (1612, 12767), (2108, 9763), (3004, 6851)]