2180925

素因数分解:

$3^5\times 5^2\times {\mathrm{359}}^1$

素因数の和:384

約数の個数: 36

約数和(自身を含む): 4062240

約数和(自身を除く): 1881315

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 359, 405, 675, 1077, 1215, 1795, 2025, 3231, 5385, 6075, 8975, 9693, 16155, 26925, 29079, 48465, 80775, 87237, 145395, 242325, 436185, 726975, 2180925]

約数ペア:

[(1, 2180925), (3, 726975), (5, 436185), (9, 242325), (15, 145395), (25, 87237), (27, 80775), (45, 48465), (75, 29079), (81, 26925), (135, 16155), (225, 9693), (243, 8975), (359, 6075), (405, 5385), (675, 3231), (1077, 2025), (1215, 1795)]