388974015

素因数分解:

$3^3\times 5^1\times {\mathrm{2881289}}^1$

素因数の和:2881303

約数の個数: 16

約数和(自身を含む): 691509600

約数和(自身を除く): 302535585

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 2881289, 8643867, 14406445, 25931601, 43219335, 77794803, 129658005, 388974015]

約数ペア:

[(1, 388974015), (3, 129658005), (5, 77794803), (9, 43219335), (15, 25931601), (27, 14406445), (45, 8643867), (135, 2881289)]