39782120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{20297}}^1$

素因数の和:20322

約数の個数: 48

約数和(自身を含む): 104128740

約数和(自身を除く): 64346620

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 20297, 40594, 81188, 101485, 142079, 162376, 202970, 284158, 405940, 568316, 710395, 811880, 994553, 1136632, 1420790, 1989106, 2841580, 3978212, 4972765, 5683160, 7956424, 9945530, 19891060, 39782120]

約数ペア:

[(1, 39782120), (2, 19891060), (4, 9945530), (5, 7956424), (7, 5683160), (8, 4972765), (10, 3978212), (14, 2841580), (20, 1989106), (28, 1420790), (35, 1136632), (40, 994553), (49, 811880), (56, 710395), (70, 568316), (98, 405940), (140, 284158), (196, 202970), (245, 162376), (280, 142079), (392, 101485), (490, 81188), (980, 40594), (1960, 20297)]