16406680

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 38491200

約数和(自身を除く): 22084520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 71, 106, 109, 142, 212, 218, 265, 284, 355, 424, 436, 530, 545, 568, 710, 872, 1060, 1090, 1420, 2120, 2180, 2840, 3763, 4360, 5777, 7526, 7739, 11554, 15052, 15478, 18815, 23108, 28885, 30104, 30956, 37630, 38695, 46216, 57770, 61912, 75260, 77390, 115540, 150520, 154780, 231080, 309560, 410167, 820334, 1640668, 2050835, 3281336, 4101670, 8203340, 16406680]

約数ペア:

[(1, 16406680), (2, 8203340), (4, 4101670), (5, 3281336), (8, 2050835), (10, 1640668), (20, 820334), (40, 410167), (53, 309560), (71, 231080), (106, 154780), (109, 150520), (142, 115540), (212, 77390), (218, 75260), (265, 61912), (284, 57770), (355, 46216), (424, 38695), (436, 37630), (530, 30956), (545, 30104), (568, 28885), (710, 23108), (872, 18815), (1060, 15478), (1090, 15052), (1420, 11554), (2120, 7739), (2180, 7526), (2840, 5777), (3763, 4360)]