72689440

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23911}}^1$

素因数の和:23945

約数の個数: 48

約数和(自身を含む): 180774720

約数和(自身を除く): 108085280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 23911, 47822, 95644, 119555, 191288, 239110, 382576, 454309, 478220, 765152, 908618, 956440, 1817236, 1912880, 2271545, 3634472, 3825760, 4543090, 7268944, 9086180, 14537888, 18172360, 36344720, 72689440]

約数ペア:

[(1, 72689440), (2, 36344720), (4, 18172360), (5, 14537888), (8, 9086180), (10, 7268944), (16, 4543090), (19, 3825760), (20, 3634472), (32, 2271545), (38, 1912880), (40, 1817236), (76, 956440), (80, 908618), (95, 765152), (152, 478220), (160, 454309), (190, 382576), (304, 239110), (380, 191288), (608, 119555), (760, 95644), (1520, 47822), (3040, 23911)]