19945060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{719}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 44755200

約数和(自身を除く): 24810140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 365, 380, 719, 730, 1387, 1438, 1460, 2774, 2876, 3595, 5548, 6935, 7190, 13661, 13870, 14380, 27322, 27740, 52487, 54644, 68305, 104974, 136610, 209948, 262435, 273220, 524870, 997253, 1049740, 1994506, 3989012, 4986265, 9972530, 19945060]

約数ペア:

[(1, 19945060), (2, 9972530), (4, 4986265), (5, 3989012), (10, 1994506), (19, 1049740), (20, 997253), (38, 524870), (73, 273220), (76, 262435), (95, 209948), (146, 136610), (190, 104974), (292, 68305), (365, 54644), (380, 52487), (719, 27740), (730, 27322), (1387, 14380), (1438, 13870), (1460, 13661), (2774, 7190), (2876, 6935), (3595, 5548)]