1636698680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{23209}}^1$

素因数の和:23304

約数の個数: 64

約数和(自身を含む): 3860287200

約数和(自身を除く): 2223588520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 43, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 820, 860, 1640, 1720, 1763, 3526, 7052, 8815, 14104, 17630, 23209, 35260, 46418, 70520, 92836, 116045, 185672, 232090, 464180, 928360, 951569, 997987, 1903138, 1995974, 3806276, 3991948, 4757845, 4989935, 7612552, 7983896, 9515690, 9979870, 19031380, 19959740, 38062760, 39919480, 40917467, 81834934, 163669868, 204587335, 327339736, 409174670, 818349340, 1636698680]

約数ペア:

[(1, 1636698680), (2, 818349340), (4, 409174670), (5, 327339736), (8, 204587335), (10, 163669868), (20, 81834934), (40, 40917467), (41, 39919480), (43, 38062760), (82, 19959740), (86, 19031380), (164, 9979870), (172, 9515690), (205, 7983896), (215, 7612552), (328, 4989935), (344, 4757845), (410, 3991948), (430, 3806276), (820, 1995974), (860, 1903138), (1640, 997987), (1720, 951569), (1763, 928360), (3526, 464180), (7052, 232090), (8815, 185672), (14104, 116045), (17630, 92836), (23209, 70520), (35260, 46418)]