8203340

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 17962560

約数和(自身を除く): 9759220

約数列:

[1, 2, 4, 5, 10, 20, 53, 71, 106, 109, 142, 212, 218, 265, 284, 355, 436, 530, 545, 710, 1060, 1090, 1420, 2180, 3763, 5777, 7526, 7739, 11554, 15052, 15478, 18815, 23108, 28885, 30956, 37630, 38695, 57770, 75260, 77390, 115540, 154780, 410167, 820334, 1640668, 2050835, 4101670, 8203340]

約数ペア:

[(1, 8203340), (2, 4101670), (4, 2050835), (5, 1640668), (10, 820334), (20, 410167), (53, 154780), (71, 115540), (106, 77390), (109, 75260), (142, 57770), (212, 38695), (218, 37630), (265, 30956), (284, 28885), (355, 23108), (436, 18815), (530, 15478), (545, 15052), (710, 11554), (1060, 7739), (1090, 7526), (1420, 5777), (2180, 3763)]