1999240

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{331}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 4541760

約数和(自身を除く): 2542520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 331, 604, 662, 755, 1208, 1324, 1510, 1655, 2648, 3020, 3310, 6040, 6620, 13240, 49981, 99962, 199924, 249905, 399848, 499810, 999620, 1999240]

約数ペア:

[(1, 1999240), (2, 999620), (4, 499810), (5, 399848), (8, 249905), (10, 199924), (20, 99962), (40, 49981), (151, 13240), (302, 6620), (331, 6040), (604, 3310), (662, 3020), (755, 2648), (1208, 1655), (1324, 1510)]