19115875

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 32

約数和(自身を含む): 25534080

約数和(自身を除く): 6418205

約数列:

[1, 5, 23, 25, 61, 109, 115, 125, 305, 545, 575, 1403, 1525, 2507, 2725, 2875, 6649, 7015, 7625, 12535, 13625, 33245, 35075, 62675, 152927, 166225, 175375, 313375, 764635, 831125, 3823175, 19115875]

約数ペア:

[(1, 19115875), (5, 3823175), (23, 831125), (25, 764635), (61, 313375), (109, 175375), (115, 166225), (125, 152927), (305, 62675), (545, 35075), (575, 33245), (1403, 13625), (1525, 12535), (2507, 7625), (2725, 7015), (2875, 6649)]