78699440

素因数分解:

$2^4\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1213}}^1$

素因数の和:2037

約数の個数: 40

約数和(自身を含む): 183352848

約数和(自身を除く): 104653408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 811, 1213, 1622, 2426, 3244, 4055, 4852, 6065, 6488, 8110, 9704, 12130, 12976, 16220, 19408, 24260, 32440, 48520, 64880, 97040, 983743, 1967486, 3934972, 4918715, 7869944, 9837430, 15739888, 19674860, 39349720, 78699440]

約数ペア:

[(1, 78699440), (2, 39349720), (4, 19674860), (5, 15739888), (8, 9837430), (10, 7869944), (16, 4918715), (20, 3934972), (40, 1967486), (80, 983743), (811, 97040), (1213, 64880), (1622, 48520), (2426, 32440), (3244, 24260), (4055, 19408), (4852, 16220), (6065, 12976), (6488, 12130), (8110, 9704)]