128698745

素因数分解:

$5^1\times 7^3\times {\mathrm{101}}^1\times {\mathrm{743}}^1$

素因数の和:870

約数の個数: 32

約数和(自身を含む): 182131200

約数和(自身を除く): 53432455

約数列:

[1, 5, 7, 35, 49, 101, 245, 343, 505, 707, 743, 1715, 3535, 3715, 4949, 5201, 24745, 26005, 34643, 36407, 75043, 173215, 182035, 254849, 375215, 525301, 1274245, 2626505, 3677107, 18385535, 25739749, 128698745]

約数ペア:

[(1, 128698745), (5, 25739749), (7, 18385535), (35, 3677107), (49, 2626505), (101, 1274245), (245, 525301), (343, 375215), (505, 254849), (707, 182035), (743, 173215), (1715, 75043), (3535, 36407), (3715, 34643), (4949, 26005), (5201, 24745)]