251158725

素因数分解:

$3^6\times 5^2\times {\mathrm{13781}}^1$

素因数の和:13809

約数の個数: 42

約数和(自身を含む): 466975506

約数和(自身を除く): 215816781

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 729, 1215, 2025, 3645, 6075, 13781, 18225, 41343, 68905, 124029, 206715, 344525, 372087, 620145, 1033575, 1116261, 1860435, 3100725, 3348783, 5581305, 9302175, 10046349, 16743915, 27906525, 50231745, 83719575, 251158725]

約数ペア:

[(1, 251158725), (3, 83719575), (5, 50231745), (9, 27906525), (15, 16743915), (25, 10046349), (27, 9302175), (45, 5581305), (75, 3348783), (81, 3100725), (135, 1860435), (225, 1116261), (243, 1033575), (405, 620145), (675, 372087), (729, 344525), (1215, 206715), (2025, 124029), (3645, 68905), (6075, 41343), (13781, 18225)]