71190280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3581}}^1$

素因数の和:3670

約数の個数: 64

約数和(自身を含む): 185690880

約数和(自身を除く): 114500600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3581, 3976, 4970, 7162, 9940, 14324, 17905, 19880, 25067, 28648, 35810, 50134, 71620, 100268, 125335, 143240, 200536, 250670, 254251, 501340, 508502, 1002680, 1017004, 1271255, 1779757, 2034008, 2542510, 3559514, 5085020, 7119028, 8898785, 10170040, 14238056, 17797570, 35595140, 71190280]

約数ペア:

[(1, 71190280), (2, 35595140), (4, 17797570), (5, 14238056), (7, 10170040), (8, 8898785), (10, 7119028), (14, 5085020), (20, 3559514), (28, 2542510), (35, 2034008), (40, 1779757), (56, 1271255), (70, 1017004), (71, 1002680), (140, 508502), (142, 501340), (280, 254251), (284, 250670), (355, 200536), (497, 143240), (568, 125335), (710, 100268), (994, 71620), (1420, 50134), (1988, 35810), (2485, 28648), (2840, 25067), (3581, 19880), (3976, 17905), (4970, 14324), (7162, 9940)]