20273825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 30373056

約数和(自身を除く): 10099231

約数列:

[1, 5, 11, 13, 25, 53, 55, 65, 107, 143, 265, 275, 325, 535, 583, 689, 715, 1177, 1325, 1391, 2675, 2915, 3445, 3575, 5671, 5885, 6955, 7579, 14575, 15301, 17225, 28355, 29425, 34775, 37895, 62381, 73723, 76505, 141775, 189475, 311905, 368615, 382525, 810953, 1559525, 1843075, 4054765, 20273825]

約数ペア:

[(1, 20273825), (5, 4054765), (11, 1843075), (13, 1559525), (25, 810953), (53, 382525), (55, 368615), (65, 311905), (107, 189475), (143, 141775), (265, 76505), (275, 73723), (325, 62381), (535, 37895), (583, 34775), (689, 29425), (715, 28355), (1177, 17225), (1325, 15301), (1391, 14575), (2675, 7579), (2915, 6955), (3445, 5885), (3575, 5671)]