18718160

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2819}}^1$

素因数の和:2915

約数の個数: 40

約数和(自身を含む): 44059680

約数和(自身を除く): 25341520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 2819, 3320, 5638, 6640, 11276, 14095, 22552, 28190, 45104, 56380, 112760, 225520, 233977, 467954, 935908, 1169885, 1871816, 2339770, 3743632, 4679540, 9359080, 18718160]

約数ペア:

[(1, 18718160), (2, 9359080), (4, 4679540), (5, 3743632), (8, 2339770), (10, 1871816), (16, 1169885), (20, 935908), (40, 467954), (80, 233977), (83, 225520), (166, 112760), (332, 56380), (415, 45104), (664, 28190), (830, 22552), (1328, 14095), (1660, 11276), (2819, 6640), (3320, 5638)]