313780240

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{55243}}^1$

素因数の和:55327

約数の個数: 40

約数和(自身を含む): 739827648

約数和(自身を除く): 426047408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 55243, 110486, 220972, 276215, 441944, 552430, 883888, 1104860, 2209720, 3922253, 4419440, 7844506, 15689012, 19611265, 31378024, 39222530, 62756048, 78445060, 156890120, 313780240]

約数ペア:

[(1, 313780240), (2, 156890120), (4, 78445060), (5, 62756048), (8, 39222530), (10, 31378024), (16, 19611265), (20, 15689012), (40, 7844506), (71, 4419440), (80, 3922253), (142, 2209720), (284, 1104860), (355, 883888), (568, 552430), (710, 441944), (1136, 276215), (1420, 220972), (2840, 110486), (5680, 55243)]