2420199125

素因数分解:

$5^3\times {\mathrm{67}}^1\times {\mathrm{288979}}^1$

素因数の和:289061

約数の個数: 16

約数和(自身を含む): 3065499840

約数和(自身を除く): 645300715

約数列:

[1, 5, 25, 67, 125, 335, 1675, 8375, 288979, 1444895, 7224475, 19361593, 36122375, 96807965, 484039825, 2420199125]

約数ペア:

[(1, 2420199125), (5, 484039825), (25, 96807965), (67, 36122375), (125, 19361593), (335, 7224475), (1675, 1444895), (8375, 288979)]