20023055

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{523}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 28170240

約数和(自身を除く): 8147185

約数列:

[1, 5, 13, 19, 31, 65, 95, 155, 247, 403, 523, 589, 1235, 2015, 2615, 2945, 6799, 7657, 9937, 16213, 33995, 38285, 49685, 81065, 129181, 210769, 308047, 645905, 1053845, 1540235, 4004611, 20023055]

約数ペア:

[(1, 20023055), (5, 4004611), (13, 1540235), (19, 1053845), (31, 645905), (65, 308047), (95, 210769), (155, 129181), (247, 81065), (403, 49685), (523, 38285), (589, 33995), (1235, 16213), (2015, 9937), (2615, 7657), (2945, 6799)]