199492880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{60821}}^1$

素因数の和:60875

約数の個数: 40

約数和(自身を含む): 475141464

約数和(自身を除く): 275648584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 60821, 121642, 243284, 304105, 486568, 608210, 973136, 1216420, 2432840, 2493661, 4865680, 4987322, 9974644, 12468305, 19949288, 24936610, 39898576, 49873220, 99746440, 199492880]

約数ペア:

[(1, 199492880), (2, 99746440), (4, 49873220), (5, 39898576), (8, 24936610), (10, 19949288), (16, 12468305), (20, 9974644), (40, 4987322), (41, 4865680), (80, 2493661), (82, 2432840), (164, 1216420), (205, 973136), (328, 608210), (410, 486568), (656, 304105), (820, 243284), (1640, 121642), (3280, 60821)]