18691610

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1039}}^1$

素因数の和:1310

約数の個数: 32

約数和(自身を含む): 38638080

約数和(自身を除く): 19946470

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 257, 514, 1039, 1285, 1799, 2078, 2570, 3598, 5195, 7273, 8995, 10390, 14546, 17990, 36365, 72730, 267023, 534046, 1335115, 1869161, 2670230, 3738322, 9345805, 18691610]

約数ペア:

[(1, 18691610), (2, 9345805), (5, 3738322), (7, 2670230), (10, 1869161), (14, 1335115), (35, 534046), (70, 267023), (257, 72730), (514, 36365), (1039, 17990), (1285, 14546), (1799, 10390), (2078, 8995), (2570, 7273), (3598, 5195)]