204280100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{47507}}^1$

素因数の和:47564

約数の個数: 36

約数和(自身を含む): 453606384

約数和(自身を除く): 249326284

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 47507, 95014, 190028, 237535, 475070, 950140, 1187675, 2042801, 2375350, 4085602, 4750700, 8171204, 10214005, 20428010, 40856020, 51070025, 102140050, 204280100]

約数ペア:

[(1, 204280100), (2, 102140050), (4, 51070025), (5, 40856020), (10, 20428010), (20, 10214005), (25, 8171204), (43, 4750700), (50, 4085602), (86, 2375350), (100, 2042801), (172, 1187675), (215, 950140), (430, 475070), (860, 237535), (1075, 190028), (2150, 95014), (4300, 47507)]