78381040

素因数分解:

$2^4\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1759}}^1$

素因数の和:2329

約数の個数: 40

約数和(自身を含む): 182666880

約数和(自身を除く): 104285840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 557, 1114, 1759, 2228, 2785, 3518, 4456, 5570, 7036, 8795, 8912, 11140, 14072, 17590, 22280, 28144, 35180, 44560, 70360, 140720, 979763, 1959526, 3919052, 4898815, 7838104, 9797630, 15676208, 19595260, 39190520, 78381040]

約数ペア:

[(1, 78381040), (2, 39190520), (4, 19595260), (5, 15676208), (8, 9797630), (10, 7838104), (16, 4898815), (20, 3919052), (40, 1959526), (80, 979763), (557, 140720), (1114, 70360), (1759, 44560), (2228, 35180), (2785, 28144), (3518, 22280), (4456, 17590), (5570, 14072), (7036, 11140), (8795, 8912)]