20315625

素因数分解:

$3^1\times 5^5\times {\mathrm{11}}^1\times {\mathrm{197}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 37122624

約数和(自身を除く): 16806999

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 125, 165, 197, 275, 375, 591, 625, 825, 985, 1375, 1875, 2167, 2955, 3125, 4125, 4925, 6501, 6875, 9375, 10835, 14775, 20625, 24625, 32505, 34375, 54175, 73875, 103125, 123125, 162525, 270875, 369375, 615625, 812625, 1354375, 1846875, 4063125, 6771875, 20315625]

約数ペア:

[(1, 20315625), (3, 6771875), (5, 4063125), (11, 1846875), (15, 1354375), (25, 812625), (33, 615625), (55, 369375), (75, 270875), (125, 162525), (165, 123125), (197, 103125), (275, 73875), (375, 54175), (591, 34375), (625, 32505), (825, 24625), (985, 20625), (1375, 14775), (1875, 10835), (2167, 9375), (2955, 6875), (3125, 6501), (4125, 4925)]