77255920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{137957}}^1$

素因数の和:137977

約数の個数: 40

約数和(自身を含む): 205281504

約数和(自身を除く): 128025584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 137957, 275914, 551828, 689785, 965699, 1103656, 1379570, 1931398, 2207312, 2759140, 3862796, 4828495, 5518280, 7725592, 9656990, 11036560, 15451184, 19313980, 38627960, 77255920]

約数ペア:

[(1, 77255920), (2, 38627960), (4, 19313980), (5, 15451184), (7, 11036560), (8, 9656990), (10, 7725592), (14, 5518280), (16, 4828495), (20, 3862796), (28, 2759140), (35, 2207312), (40, 1931398), (56, 1379570), (70, 1103656), (80, 965699), (112, 689785), (140, 551828), (280, 275914), (560, 137957)]