19904750

素因数分解:

$2^1\times 5^3\times {\mathrm{103}}^1\times {\mathrm{773}}^1$

素因数の和:893

約数の個数: 32

約数和(自身を含む): 37672128

約数和(自身を除く): 17767378

約数列:

[1, 2, 5, 10, 25, 50, 103, 125, 206, 250, 515, 773, 1030, 1546, 2575, 3865, 5150, 7730, 12875, 19325, 25750, 38650, 79619, 96625, 159238, 193250, 398095, 796190, 1990475, 3980950, 9952375, 19904750]

約数ペア:

[(1, 19904750), (2, 9952375), (5, 3980950), (10, 1990475), (25, 796190), (50, 398095), (103, 193250), (125, 159238), (206, 96625), (250, 79619), (515, 38650), (773, 25750), (1030, 19325), (1546, 12875), (2575, 7730), (3865, 5150)]