8172820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 18184320

約数和(自身を除く): 10011500

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 109, 115, 163, 218, 230, 326, 436, 460, 545, 652, 815, 1090, 1630, 2180, 2507, 3260, 3749, 5014, 7498, 10028, 12535, 14996, 17767, 18745, 25070, 35534, 37490, 50140, 71068, 74980, 88835, 177670, 355340, 408641, 817282, 1634564, 2043205, 4086410, 8172820]

約数ペア:

[(1, 8172820), (2, 4086410), (4, 2043205), (5, 1634564), (10, 817282), (20, 408641), (23, 355340), (46, 177670), (92, 88835), (109, 74980), (115, 71068), (163, 50140), (218, 37490), (230, 35534), (326, 25070), (436, 18745), (460, 17767), (545, 14996), (652, 12535), (815, 10028), (1090, 7498), (1630, 5014), (2180, 3749), (2507, 3260)]