440235

素因数分解:

$3^4\times 5^1\times {\mathrm{1087}}^1$

素因数の和:1104

約数の個数: 20

約数和(自身を含む): 789888

約数和(自身を除く): 349653

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1087, 3261, 5435, 9783, 16305, 29349, 48915, 88047, 146745, 440235]

約数ペア:

[(1, 440235), (3, 146745), (5, 88047), (9, 48915), (15, 29349), (27, 16305), (45, 9783), (81, 5435), (135, 3261), (405, 1087)]