638528025

素因数分解:

$3^1\times 5^2\times {\mathrm{383}}^1\times {\mathrm{22229}}^1$

素因数の和:22625

約数の個数: 24

約数和(自身を含む): 1058503680

約数和(自身を除く): 419975655

約数列:

[1, 3, 5, 15, 25, 75, 383, 1149, 1915, 5745, 9575, 22229, 28725, 66687, 111145, 333435, 555725, 1667175, 8513707, 25541121, 42568535, 127705605, 212842675, 638528025]

約数ペア:

[(1, 638528025), (3, 212842675), (5, 127705605), (15, 42568535), (25, 25541121), (75, 8513707), (383, 1667175), (1149, 555725), (1915, 333435), (5745, 111145), (9575, 66687), (22229, 28725)]