157225720

素因数分解:

$2^3\times 5^1\times {\mathrm{1553}}^1\times {\mathrm{2531}}^1$

素因数の和:4095

約数の個数: 32

約数和(自身を含む): 354125520

約数和(自身を除く): 196899800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1553, 2531, 3106, 5062, 6212, 7765, 10124, 12424, 12655, 15530, 20248, 25310, 31060, 50620, 62120, 101240, 3930643, 7861286, 15722572, 19653215, 31445144, 39306430, 78612860, 157225720]

約数ペア:

[(1, 157225720), (2, 78612860), (4, 39306430), (5, 31445144), (8, 19653215), (10, 15722572), (20, 7861286), (40, 3930643), (1553, 101240), (2531, 62120), (3106, 50620), (5062, 31060), (6212, 25310), (7765, 20248), (10124, 15530), (12424, 12655)]