2020128740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{32869}}^1$

素因数の和:33324

約数の個数: 48

約数和(自身を含む): 4859500800

約数和(自身を除く): 2839372060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 439, 878, 1756, 2195, 3073, 4390, 6146, 8780, 12292, 15365, 30730, 32869, 61460, 65738, 131476, 164345, 230083, 328690, 460166, 657380, 920332, 1150415, 2300830, 4601660, 14429491, 28858982, 57717964, 72147455, 101006437, 144294910, 202012874, 288589820, 404025748, 505032185, 1010064370, 2020128740]

約数ペア:

[(1, 2020128740), (2, 1010064370), (4, 505032185), (5, 404025748), (7, 288589820), (10, 202012874), (14, 144294910), (20, 101006437), (28, 72147455), (35, 57717964), (70, 28858982), (140, 14429491), (439, 4601660), (878, 2300830), (1756, 1150415), (2195, 920332), (3073, 657380), (4390, 460166), (6146, 328690), (8780, 230083), (12292, 164345), (15365, 131476), (30730, 65738), (32869, 61460)]