8984420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 19987968

約数和(自身を除く): 11003548

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 124, 155, 172, 215, 310, 337, 430, 620, 674, 860, 1333, 1348, 1685, 2666, 3370, 5332, 6665, 6740, 10447, 13330, 14491, 20894, 26660, 28982, 41788, 52235, 57964, 72455, 104470, 144910, 208940, 289820, 449221, 898442, 1796884, 2246105, 4492210, 8984420]

約数ペア:

[(1, 8984420), (2, 4492210), (4, 2246105), (5, 1796884), (10, 898442), (20, 449221), (31, 289820), (43, 208940), (62, 144910), (86, 104470), (124, 72455), (155, 57964), (172, 52235), (215, 41788), (310, 28982), (337, 26660), (430, 20894), (620, 14491), (674, 13330), (860, 10447), (1333, 6740), (1348, 6665), (1685, 5332), (2666, 3370)]