406974815

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 574420896

約数和(自身を除く): 167446081

約数列:

[1, 5, 13, 17, 41, 65, 85, 169, 205, 221, 533, 691, 697, 845, 1105, 2665, 2873, 3455, 3485, 6929, 8983, 9061, 11747, 14365, 28331, 34645, 44915, 45305, 58735, 116779, 117793, 141655, 152711, 368303, 481627, 583895, 588965, 763555, 1841515, 1985243, 2408135, 4787939, 6261151, 9926215, 23939695, 31305755, 81394963, 406974815]

約数ペア:

[(1, 406974815), (5, 81394963), (13, 31305755), (17, 23939695), (41, 9926215), (65, 6261151), (85, 4787939), (169, 2408135), (205, 1985243), (221, 1841515), (533, 763555), (691, 588965), (697, 583895), (845, 481627), (1105, 368303), (2665, 152711), (2873, 141655), (3455, 117793), (3485, 116779), (6929, 58735), (8983, 45305), (9061, 44915), (11747, 34645), (14365, 28331)]