20854625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{523}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 29427840

約数和(自身を除く): 8573215

約数列:

[1, 5, 11, 25, 29, 55, 125, 145, 275, 319, 523, 725, 1375, 1595, 2615, 3625, 5753, 7975, 13075, 15167, 28765, 39875, 65375, 75835, 143825, 166837, 379175, 719125, 834185, 1895875, 4170925, 20854625]

約数ペア:

[(1, 20854625), (5, 4170925), (11, 1895875), (25, 834185), (29, 719125), (55, 379175), (125, 166837), (145, 143825), (275, 75835), (319, 65375), (523, 39875), (725, 28765), (1375, 15167), (1595, 13075), (2615, 7975), (3625, 5753)]