205904025

素因数分解:

$3^4\times 5^2\times {\mathrm{101681}}^1$

素因数の和:101703

約数の個数: 30

約数和(自身を含む): 381409182

約数和(自身を除く): 175505157

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 101681, 305043, 508405, 915129, 1525215, 2542025, 2745387, 4575645, 7626075, 8236161, 13726935, 22878225, 41180805, 68634675, 205904025]

約数ペア:

[(1, 205904025), (3, 68634675), (5, 41180805), (9, 22878225), (15, 13726935), (25, 8236161), (27, 7626075), (45, 4575645), (75, 2745387), (81, 2542025), (135, 1525215), (225, 915129), (405, 508405), (675, 305043), (2025, 101681)]