2178075

素因数分解:

$3^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 3647088

約数和(自身を除く): 1469013

約数列:

[1, 3, 5, 15, 25, 75, 113, 257, 339, 565, 771, 1285, 1695, 2825, 3855, 6425, 8475, 19275, 29041, 87123, 145205, 435615, 726025, 2178075]

約数ペア:

[(1, 2178075), (3, 726025), (5, 435615), (15, 145205), (25, 87123), (75, 29041), (113, 19275), (257, 8475), (339, 6425), (565, 3855), (771, 2825), (1285, 1695)]