20029730

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1059

約数の個数: 48

約数和(自身を含む): 43005816

約数和(自身を除く): 22976086

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 49, 70, 82, 98, 205, 245, 287, 410, 490, 574, 997, 1435, 1994, 2009, 2870, 4018, 4985, 6979, 9970, 10045, 13958, 20090, 34895, 40877, 48853, 69790, 81754, 97706, 204385, 244265, 286139, 408770, 488530, 572278, 1430695, 2002973, 2861390, 4005946, 10014865, 20029730]

約数ペア:

[(1, 20029730), (2, 10014865), (5, 4005946), (7, 2861390), (10, 2002973), (14, 1430695), (35, 572278), (41, 488530), (49, 408770), (70, 286139), (82, 244265), (98, 204385), (205, 97706), (245, 81754), (287, 69790), (410, 48853), (490, 40877), (574, 34895), (997, 20090), (1435, 13958), (1994, 10045), (2009, 9970), (2870, 6979), (4018, 4985)]