27999580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{28571}}^1$

素因数の和:28594

約数の個数: 36

約数和(自身を含む): 68401368

約数和(自身を除く): 40401788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 28571, 57142, 114284, 142855, 199997, 285710, 399994, 571420, 799988, 999985, 1399979, 1999970, 2799958, 3999940, 5599916, 6999895, 13999790, 27999580]

約数ペア:

[(1, 27999580), (2, 13999790), (4, 6999895), (5, 5599916), (7, 3999940), (10, 2799958), (14, 1999970), (20, 1399979), (28, 999985), (35, 799988), (49, 571420), (70, 399994), (98, 285710), (140, 199997), (196, 142855), (245, 114284), (490, 57142), (980, 28571)]