637782020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{10159}}^1$

素因数の和:10284

約数の個数: 48

約数和(自身を含む): 1389400320

約数和(自身を除く): 751618300

約数列:

[1, 2, 4, 5, 10, 20, 43, 73, 86, 146, 172, 215, 292, 365, 430, 730, 860, 1460, 3139, 6278, 10159, 12556, 15695, 20318, 31390, 40636, 50795, 62780, 101590, 203180, 436837, 741607, 873674, 1483214, 1747348, 2184185, 2966428, 3708035, 4368370, 7416070, 8736740, 14832140, 31889101, 63778202, 127556404, 159445505, 318891010, 637782020]

約数ペア:

[(1, 637782020), (2, 318891010), (4, 159445505), (5, 127556404), (10, 63778202), (20, 31889101), (43, 14832140), (73, 8736740), (86, 7416070), (146, 4368370), (172, 3708035), (215, 2966428), (292, 2184185), (365, 1747348), (430, 1483214), (730, 873674), (860, 741607), (1460, 436837), (3139, 203180), (6278, 101590), (10159, 62780), (12556, 50795), (15695, 40636), (20318, 31390)]