82781450

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:471

約数の個数: 48

約数和(自身を含む): 159260640

約数和(自身を除く): 76479190

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 139, 215, 277, 278, 430, 554, 695, 1075, 1385, 1390, 2150, 2770, 3475, 5977, 6925, 6950, 11911, 11954, 13850, 23822, 29885, 38503, 59555, 59770, 77006, 119110, 149425, 192515, 297775, 298850, 385030, 595550, 962575, 1655629, 1925150, 3311258, 8278145, 16556290, 41390725, 82781450]

約数ペア:

[(1, 82781450), (2, 41390725), (5, 16556290), (10, 8278145), (25, 3311258), (43, 1925150), (50, 1655629), (86, 962575), (139, 595550), (215, 385030), (277, 298850), (278, 297775), (430, 192515), (554, 149425), (695, 119110), (1075, 77006), (1385, 59770), (1390, 59555), (2150, 38503), (2770, 29885), (3475, 23822), (5977, 13850), (6925, 11954), (6950, 11911)]