165588700

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:551

約数の個数: 72

約数和(自身を含む): 372410192

約数和(自身を除く): 206821492

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 97, 100, 172, 194, 215, 388, 397, 430, 485, 794, 860, 970, 1075, 1588, 1940, 1985, 2150, 2425, 3970, 4171, 4300, 4850, 7940, 8342, 9700, 9925, 16684, 17071, 19850, 20855, 34142, 38509, 39700, 41710, 68284, 77018, 83420, 85355, 104275, 154036, 170710, 192545, 208550, 341420, 385090, 417100, 426775, 770180, 853550, 962725, 1655887, 1707100, 1925450, 3311774, 3850900, 6623548, 8279435, 16558870, 33117740, 41397175, 82794350, 165588700]

約数ペア:

[(1, 165588700), (2, 82794350), (4, 41397175), (5, 33117740), (10, 16558870), (20, 8279435), (25, 6623548), (43, 3850900), (50, 3311774), (86, 1925450), (97, 1707100), (100, 1655887), (172, 962725), (194, 853550), (215, 770180), (388, 426775), (397, 417100), (430, 385090), (485, 341420), (794, 208550), (860, 192545), (970, 170710), (1075, 154036), (1588, 104275), (1940, 85355), (1985, 83420), (2150, 77018), (2425, 68284), (3970, 41710), (4171, 39700), (4300, 38509), (4850, 34142), (7940, 20855), (8342, 19850), (9700, 17071), (9925, 16684)]