20174861565

素因数分解:

$3^4\times 5^1\times {\mathrm{49814473}}^1$

素因数の和:49814490

約数の個数: 20

約数和(自身を含む): 36165308124

約数和(自身を除く): 15990446559

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49814473, 149443419, 249072365, 448330257, 747217095, 1344990771, 2241651285, 4034972313, 6724953855, 20174861565]

約数ペア:

[(1, 20174861565), (3, 6724953855), (5, 4034972313), (9, 2241651285), (15, 1344990771), (27, 747217095), (45, 448330257), (81, 249072365), (135, 149443419), (405, 49814473)]