19770700

素因数分解:

$2^2\times 5^2\times {\mathrm{211}}^1\times {\mathrm{937}}^1$

素因数の和:1162

約数の個数: 36

約数和(自身を含む): 43151752

約数和(自身を除く): 23381052

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 211, 422, 844, 937, 1055, 1874, 2110, 3748, 4220, 4685, 5275, 9370, 10550, 18740, 21100, 23425, 46850, 93700, 197707, 395414, 790828, 988535, 1977070, 3954140, 4942675, 9885350, 19770700]

約数ペア:

[(1, 19770700), (2, 9885350), (4, 4942675), (5, 3954140), (10, 1977070), (20, 988535), (25, 790828), (50, 395414), (100, 197707), (211, 93700), (422, 46850), (844, 23425), (937, 21100), (1055, 18740), (1874, 10550), (2110, 9370), (3748, 5275), (4220, 4685)]