1620375

素因数分解:

$3^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:196

約数の個数: 32

約数和(自身を含む): 2808000

約数和(自身を除く): 1187625

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 125, 145, 149, 375, 435, 447, 725, 745, 2175, 2235, 3625, 3725, 4321, 10875, 11175, 12963, 18625, 21605, 55875, 64815, 108025, 324075, 540125, 1620375]

約数ペア:

[(1, 1620375), (3, 540125), (5, 324075), (15, 108025), (25, 64815), (29, 55875), (75, 21605), (87, 18625), (125, 12963), (145, 11175), (149, 10875), (375, 4321), (435, 3725), (447, 3625), (725, 2235), (745, 2175)]