19784900

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{3733}}^1$

素因数の和:3800

約数の個数: 36

約数和(自身を含む): 43755012

約数和(自身を除く): 23970112

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 3733, 5300, 7466, 14932, 18665, 37330, 74660, 93325, 186650, 197849, 373300, 395698, 791396, 989245, 1978490, 3956980, 4946225, 9892450, 19784900]

約数ペア:

[(1, 19784900), (2, 9892450), (4, 4946225), (5, 3956980), (10, 1978490), (20, 989245), (25, 791396), (50, 395698), (53, 373300), (100, 197849), (106, 186650), (212, 93325), (265, 74660), (530, 37330), (1060, 18665), (1325, 14932), (2650, 7466), (3733, 5300)]