18702560

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2851}}^1$

素因数の和:2907

約数の個数: 48

約数和(自身を含む): 45278352

約数和(自身を除く): 26575792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 2851, 3280, 5702, 6560, 11404, 14255, 22808, 28510, 45616, 57020, 91232, 114040, 116891, 228080, 233782, 456160, 467564, 584455, 935128, 1168910, 1870256, 2337820, 3740512, 4675640, 9351280, 18702560]

約数ペア:

[(1, 18702560), (2, 9351280), (4, 4675640), (5, 3740512), (8, 2337820), (10, 1870256), (16, 1168910), (20, 935128), (32, 584455), (40, 467564), (41, 456160), (80, 233782), (82, 228080), (160, 116891), (164, 114040), (205, 91232), (328, 57020), (410, 45616), (656, 28510), (820, 22808), (1312, 14255), (1640, 11404), (2851, 6560), (3280, 5702)]