19830520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13399}}^1$

素因数の和:13447

約数の個数: 32

約数和(自身を含む): 45828000

約数和(自身を除く): 25997480

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13399, 26798, 53596, 66995, 107192, 133990, 267980, 495763, 535960, 991526, 1983052, 2478815, 3966104, 4957630, 9915260, 19830520]

約数ペア:

[(1, 19830520), (2, 9915260), (4, 4957630), (5, 3966104), (8, 2478815), (10, 1983052), (20, 991526), (37, 535960), (40, 495763), (74, 267980), (148, 133990), (185, 107192), (296, 66995), (370, 53596), (740, 26798), (1480, 13399)]