20482960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{15061}}^1$

素因数の和:15091

約数の個数: 40

約数和(自身を含む): 50427576

約数和(自身を除く): 29944616

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 15061, 30122, 60244, 75305, 120488, 150610, 240976, 256037, 301220, 512074, 602440, 1024148, 1204880, 1280185, 2048296, 2560370, 4096592, 5120740, 10241480, 20482960]

約数ペア:

[(1, 20482960), (2, 10241480), (4, 5120740), (5, 4096592), (8, 2560370), (10, 2048296), (16, 1280185), (17, 1204880), (20, 1024148), (34, 602440), (40, 512074), (68, 301220), (80, 256037), (85, 240976), (136, 150610), (170, 120488), (272, 75305), (340, 60244), (680, 30122), (1360, 15061)]