72249165

素因数分解:

$3^4\times 5^1\times {\mathrm{178393}}^1$

素因数の和:178410

約数の個数: 20

約数和(自身を含む): 129514044

約数和(自身を除く): 57264879

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 178393, 535179, 891965, 1605537, 2675895, 4816611, 8027685, 14449833, 24083055, 72249165]

約数ペア:

[(1, 72249165), (3, 24083055), (5, 14449833), (9, 8027685), (15, 4816611), (27, 2675895), (45, 1605537), (81, 891965), (135, 535179), (405, 178393)]