2800520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1321}}^1$

素因数の和:1385

約数の個数: 32

約数和(自身を含む): 6424920

約数和(自身を除く): 3624400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 1321, 2120, 2642, 5284, 6605, 10568, 13210, 26420, 52840, 70013, 140026, 280052, 350065, 560104, 700130, 1400260, 2800520]

約数ペア:

[(1, 2800520), (2, 1400260), (4, 700130), (5, 560104), (8, 350065), (10, 280052), (20, 140026), (40, 70013), (53, 52840), (106, 26420), (212, 13210), (265, 10568), (424, 6605), (530, 5284), (1060, 2642), (1321, 2120)]