28397180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8819}}^1$

素因数の和:8858

約数の個数: 48

約数和(自身を含む): 71124480

約数和(自身を除く): 42727300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 8819, 17638, 35276, 44095, 61733, 88190, 123466, 176380, 202837, 246932, 308665, 405674, 617330, 811348, 1014185, 1234660, 1419859, 2028370, 2839718, 4056740, 5679436, 7099295, 14198590, 28397180]

約数ペア:

[(1, 28397180), (2, 14198590), (4, 7099295), (5, 5679436), (7, 4056740), (10, 2839718), (14, 2028370), (20, 1419859), (23, 1234660), (28, 1014185), (35, 811348), (46, 617330), (70, 405674), (92, 308665), (115, 246932), (140, 202837), (161, 176380), (230, 123466), (322, 88190), (460, 61733), (644, 44095), (805, 35276), (1610, 17638), (3220, 8819)]