16915225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 22320000

約数和(自身を除く): 5404775

約数列:

[1, 5, 19, 25, 95, 149, 239, 475, 745, 1195, 2831, 3725, 4541, 5975, 14155, 22705, 35611, 70775, 113525, 178055, 676609, 890275, 3383045, 16915225]

約数ペア:

[(1, 16915225), (5, 3383045), (19, 890275), (25, 676609), (95, 178055), (149, 113525), (239, 70775), (475, 35611), (745, 22705), (1195, 14155), (2831, 5975), (3725, 4541)]