18320080

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3137}}^1$

素因数の和:3223

約数の個数: 40

約数和(自身を含む): 43191432

約数和(自身を除く): 24871352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 3137, 5840, 6274, 12548, 15685, 25096, 31370, 50192, 62740, 125480, 229001, 250960, 458002, 916004, 1145005, 1832008, 2290010, 3664016, 4580020, 9160040, 18320080]

約数ペア:

[(1, 18320080), (2, 9160040), (4, 4580020), (5, 3664016), (8, 2290010), (10, 1832008), (16, 1145005), (20, 916004), (40, 458002), (73, 250960), (80, 229001), (146, 125480), (292, 62740), (365, 50192), (584, 31370), (730, 25096), (1168, 15685), (1460, 12548), (2920, 6274), (3137, 5840)]