19421875

素因数分解:

$5^6\times {\mathrm{11}}^1\times {\mathrm{113}}^1$

素因数の和:154

約数の個数: 28

約数和(自身を含む): 26718408

約数和(自身を除く): 7296533

約数列:

[1, 5, 11, 25, 55, 113, 125, 275, 565, 625, 1243, 1375, 2825, 3125, 6215, 6875, 14125, 15625, 31075, 34375, 70625, 155375, 171875, 353125, 776875, 1765625, 3884375, 19421875]

約数ペア:

[(1, 19421875), (5, 3884375), (11, 1765625), (25, 776875), (55, 353125), (113, 171875), (125, 155375), (275, 70625), (565, 34375), (625, 31075), (1243, 15625), (1375, 14125), (2825, 6875), (3125, 6215)]