20106990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1423}}^1$

素因数の和:1593

約数の個数: 48

約数和(自身を含む): 52648128

約数和(自身を除く): 32541138

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 157, 314, 471, 785, 942, 1413, 1423, 1570, 2355, 2826, 2846, 4269, 4710, 7065, 7115, 8538, 12807, 14130, 14230, 21345, 25614, 42690, 64035, 128070, 223411, 446822, 670233, 1117055, 1340466, 2010699, 2234110, 3351165, 4021398, 6702330, 10053495, 20106990]

約数ペア:

[(1, 20106990), (2, 10053495), (3, 6702330), (5, 4021398), (6, 3351165), (9, 2234110), (10, 2010699), (15, 1340466), (18, 1117055), (30, 670233), (45, 446822), (90, 223411), (157, 128070), (314, 64035), (471, 42690), (785, 25614), (942, 21345), (1413, 14230), (1423, 14130), (1570, 12807), (2355, 8538), (2826, 7115), (2846, 7065), (4269, 4710)]