131872020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{313981}}^1$

素因数の和:314000

約数の個数: 48

約数和(自身を含む): 421991808

約数和(自身を除く): 290119788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 313981, 627962, 941943, 1255924, 1569905, 1883886, 2197867, 3139810, 3767772, 4395734, 4709715, 6279620, 6593601, 8791468, 9419430, 10989335, 13187202, 18838860, 21978670, 26374404, 32968005, 43957340, 65936010, 131872020]

約数ペア:

[(1, 131872020), (2, 65936010), (3, 43957340), (4, 32968005), (5, 26374404), (6, 21978670), (7, 18838860), (10, 13187202), (12, 10989335), (14, 9419430), (15, 8791468), (20, 6593601), (21, 6279620), (28, 4709715), (30, 4395734), (35, 3767772), (42, 3139810), (60, 2197867), (70, 1883886), (84, 1569905), (105, 1255924), (140, 941943), (210, 627962), (420, 313981)]