199971760

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^2\times {\mathrm{1487}}^1$

素因数の和:1582

約数の個数: 60

約数和(自身を含む): 476871264

約数和(自身を除く): 276899504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1487, 1640, 1681, 2974, 3280, 3362, 5948, 6724, 7435, 8405, 11896, 13448, 14870, 16810, 23792, 26896, 29740, 33620, 59480, 60967, 67240, 118960, 121934, 134480, 243868, 304835, 487736, 609670, 975472, 1219340, 2438680, 2499647, 4877360, 4999294, 9998588, 12498235, 19997176, 24996470, 39994352, 49992940, 99985880, 199971760]

約数ペア:

[(1, 199971760), (2, 99985880), (4, 49992940), (5, 39994352), (8, 24996470), (10, 19997176), (16, 12498235), (20, 9998588), (40, 4999294), (41, 4877360), (80, 2499647), (82, 2438680), (164, 1219340), (205, 975472), (328, 609670), (410, 487736), (656, 304835), (820, 243868), (1487, 134480), (1640, 121934), (1681, 118960), (2974, 67240), (3280, 60967), (3362, 59480), (5948, 33620), (6724, 29740), (7435, 26896), (8405, 23792), (11896, 16810), (13448, 14870)]