18611950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1297}}^1$

素因数の和:1357

約数の個数: 48

約数和(自身を含む): 40559904

約数和(自身を除く): 21947954

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 41, 50, 70, 82, 175, 205, 287, 350, 410, 574, 1025, 1297, 1435, 2050, 2594, 2870, 6485, 7175, 9079, 12970, 14350, 18158, 32425, 45395, 53177, 64850, 90790, 106354, 226975, 265885, 372239, 453950, 531770, 744478, 1329425, 1861195, 2658850, 3722390, 9305975, 18611950]

約数ペア:

[(1, 18611950), (2, 9305975), (5, 3722390), (7, 2658850), (10, 1861195), (14, 1329425), (25, 744478), (35, 531770), (41, 453950), (50, 372239), (70, 265885), (82, 226975), (175, 106354), (205, 90790), (287, 64850), (350, 53177), (410, 45395), (574, 32425), (1025, 18158), (1297, 14350), (1435, 12970), (2050, 9079), (2594, 7175), (2870, 6485)]