4808020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{563}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 11749248

約数和(自身を除く): 6941228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 563, 610, 854, 1126, 1220, 1708, 2135, 2252, 2815, 3941, 4270, 5630, 7882, 8540, 11260, 15764, 19705, 34343, 39410, 68686, 78820, 137372, 171715, 240401, 343430, 480802, 686860, 961604, 1202005, 2404010, 4808020]

約数ペア:

[(1, 4808020), (2, 2404010), (4, 1202005), (5, 961604), (7, 686860), (10, 480802), (14, 343430), (20, 240401), (28, 171715), (35, 137372), (61, 78820), (70, 68686), (122, 39410), (140, 34343), (244, 19705), (305, 15764), (427, 11260), (563, 8540), (610, 7882), (854, 5630), (1126, 4270), (1220, 3941), (1708, 2815), (2135, 2252)]