19928050

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{9721}}^1$

素因数の和:9774

約数の個数: 24

約数和(自身を含む): 37974132

約数和(自身を除く): 18046082

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 205, 410, 1025, 2050, 9721, 19442, 48605, 97210, 243025, 398561, 486050, 797122, 1992805, 3985610, 9964025, 19928050]

約数ペア:

[(1, 19928050), (2, 9964025), (5, 3985610), (10, 1992805), (25, 797122), (41, 486050), (50, 398561), (82, 243025), (205, 97210), (410, 48605), (1025, 19442), (2050, 9721)]