19940080

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10837}}^1$

素因数の和:10873

約数の個数: 40

約数和(自身を含む): 48380832

約数和(自身を除く): 28440752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 10837, 21674, 43348, 54185, 86696, 108370, 173392, 216740, 249251, 433480, 498502, 866960, 997004, 1246255, 1994008, 2492510, 3988016, 4985020, 9970040, 19940080]

約数ペア:

[(1, 19940080), (2, 9970040), (4, 4985020), (5, 3988016), (8, 2492510), (10, 1994008), (16, 1246255), (20, 997004), (23, 866960), (40, 498502), (46, 433480), (80, 249251), (92, 216740), (115, 173392), (184, 108370), (230, 86696), (368, 54185), (460, 43348), (920, 21674), (1840, 10837)]