8642180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 19160064

約数和(自身を除く): 10517884

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 62, 106, 124, 155, 212, 263, 265, 310, 526, 530, 620, 1052, 1060, 1315, 1643, 2630, 3286, 5260, 6572, 8153, 8215, 13939, 16306, 16430, 27878, 32612, 32860, 40765, 55756, 69695, 81530, 139390, 163060, 278780, 432109, 864218, 1728436, 2160545, 4321090, 8642180]

約数ペア:

[(1, 8642180), (2, 4321090), (4, 2160545), (5, 1728436), (10, 864218), (20, 432109), (31, 278780), (53, 163060), (62, 139390), (106, 81530), (124, 69695), (155, 55756), (212, 40765), (263, 32860), (265, 32612), (310, 27878), (526, 16430), (530, 16306), (620, 13939), (1052, 8215), (1060, 8153), (1315, 6572), (1643, 5260), (2630, 3286)]