204040040

素因数分解:

$2^3\times 5^1\times {\mathrm{1861}}^1\times {\mathrm{2741}}^1$

素因数の和:4613

約数の個数: 32

約数和(自身を含む): 459504360

約数和(自身を除く): 255464320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1861, 2741, 3722, 5482, 7444, 9305, 10964, 13705, 14888, 18610, 21928, 27410, 37220, 54820, 74440, 109640, 5101001, 10202002, 20404004, 25505005, 40808008, 51010010, 102020020, 204040040]

約数ペア:

[(1, 204040040), (2, 102020020), (4, 51010010), (5, 40808008), (8, 25505005), (10, 20404004), (20, 10202002), (40, 5101001), (1861, 109640), (2741, 74440), (3722, 54820), (5482, 37220), (7444, 27410), (9305, 21928), (10964, 18610), (13705, 14888)]