18581620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{457}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 41549760

約数和(自身を除く): 22968140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 107, 190, 214, 380, 428, 457, 535, 914, 1070, 1828, 2033, 2140, 2285, 4066, 4570, 8132, 8683, 9140, 10165, 17366, 20330, 34732, 40660, 43415, 48899, 86830, 97798, 173660, 195596, 244495, 488990, 929081, 977980, 1858162, 3716324, 4645405, 9290810, 18581620]

約数ペア:

[(1, 18581620), (2, 9290810), (4, 4645405), (5, 3716324), (10, 1858162), (19, 977980), (20, 929081), (38, 488990), (76, 244495), (95, 195596), (107, 173660), (190, 97798), (214, 86830), (380, 48899), (428, 43415), (457, 40660), (535, 34732), (914, 20330), (1070, 17366), (1828, 10165), (2033, 9140), (2140, 8683), (2285, 8132), (4066, 4570)]