2017489985

素因数分解:

$5^1\times 7^3\times {\mathrm{907}}^1\times {\mathrm{1297}}^1$

素因数の和:2230

約数の個数: 32

約数和(自身を含む): 2828601600

約数和(自身を除く): 811111615

約数列:

[1, 5, 7, 35, 49, 245, 343, 907, 1297, 1715, 4535, 6349, 6485, 9079, 31745, 44443, 45395, 63553, 222215, 311101, 317765, 444871, 1176379, 1555505, 2224355, 5881895, 8234653, 41173265, 57642571, 288212855, 403497997, 2017489985]

約数ペア:

[(1, 2017489985), (5, 403497997), (7, 288212855), (35, 57642571), (49, 41173265), (245, 8234653), (343, 5881895), (907, 2224355), (1297, 1555505), (1715, 1176379), (4535, 444871), (6349, 317765), (6485, 311101), (9079, 222215), (31745, 63553), (44443, 45395)]