78906412.000000000

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{208553}}^1$

素因数の和:208575

約数の個数: 48

約数和(自身を含む): 630667296

約数和(自身を除く): 397087936

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 208553, 417106, 834212, 1042765, 1459871, 1668424, 2085530, 2919742, 3336848, 4171060, 5839484, 6673696, 7299355, 8342120, 11678968, 14598710, 16684240, 23357936, 29197420, 33368480, 46715872, 58394840, 116789680, 233579360]

約数ペア:

[(1, 233579360), (2, 116789680), (4, 58394840), (5, 46715872), (7, 33368480), (8, 29197420), (10, 23357936), (14, 16684240), (16, 14598710), (20, 11678968), (28, 8342120), (32, 7299355), (35, 6673696), (40, 5839484), (56, 4171060), (70, 3336848), (80, 2919742), (112, 2085530), (140, 1668424), (160, 1459871), (224, 1042765), (280, 834212), (560, 417106), (1120, 208553)]