641925

素因数分解:

$3^4\times 5^2\times {\mathrm{317}}^1$

素因数の和:339

約数の個数: 30

約数和(自身を含む): 1192818

約数和(自身を除く): 550893

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 317, 405, 675, 951, 1585, 2025, 2853, 4755, 7925, 8559, 14265, 23775, 25677, 42795, 71325, 128385, 213975, 641925]

約数ペア:

[(1, 641925), (3, 213975), (5, 128385), (9, 71325), (15, 42795), (25, 25677), (27, 23775), (45, 14265), (75, 8559), (81, 7925), (135, 4755), (225, 2853), (317, 2025), (405, 1585), (675, 951)]