20175866428

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{43}}^2\times {\mathrm{109}}^1\times {\mathrm{863}}^1$

素因数の和:1091

約数の個数: 72

約数和(自身を含む): 37781251200

約数和(自身を除く): 17605384772

約数列:

[1, 2, 4, 29, 43, 58, 86, 109, 116, 172, 218, 436, 863, 1247, 1726, 1849, 2494, 3161, 3452, 3698, 4687, 4988, 6322, 7396, 9374, 12644, 18748, 25027, 37109, 50054, 53621, 74218, 94067, 100108, 107242, 135923, 148436, 188134, 201541, 214484, 271846, 376268, 403082, 543692, 806164, 1076161, 1595687, 2152322, 2727943, 3191374, 4044881, 4304644, 5455886, 5844689, 6382748, 8089762, 10911772, 11689378, 16179524, 23378756, 46274923, 92549846, 117301549, 173929883, 185099692, 234603098, 347859766, 469206196, 695719532, 5043966607, 10087933214, 20175866428]

約数ペア:

[(1, 20175866428), (2, 10087933214), (4, 5043966607), (29, 695719532), (43, 469206196), (58, 347859766), (86, 234603098), (109, 185099692), (116, 173929883), (172, 117301549), (218, 92549846), (436, 46274923), (863, 23378756), (1247, 16179524), (1726, 11689378), (1849, 10911772), (2494, 8089762), (3161, 6382748), (3452, 5844689), (3698, 5455886), (4687, 4304644), (4988, 4044881), (6322, 3191374), (7396, 2727943), (9374, 2152322), (12644, 1595687), (18748, 1076161), (25027, 806164), (37109, 543692), (50054, 403082), (53621, 376268), (74218, 271846), (94067, 214484), (100108, 201541), (107242, 188134), (135923, 148436)]