18378825

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^2\times {\mathrm{179}}^1$

素因数の和:266

約数の個数: 36

約数和(自身を含む): 31404240

約数和(自身を除く): 13025415

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 179, 185, 537, 555, 895, 925, 1369, 2685, 2775, 4107, 4475, 6623, 6845, 13425, 19869, 20535, 33115, 34225, 99345, 102675, 165575, 245051, 496725, 735153, 1225255, 3675765, 6126275, 18378825]

約数ペア:

[(1, 18378825), (3, 6126275), (5, 3675765), (15, 1225255), (25, 735153), (37, 496725), (75, 245051), (111, 165575), (179, 102675), (185, 99345), (537, 34225), (555, 33115), (895, 20535), (925, 19869), (1369, 13425), (2685, 6845), (2775, 6623), (4107, 4475)]