217270120

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{22727}}^1$

素因数の和:22977

約数の個数: 32

約数和(自身を含む): 490924800

約数和(自身を除く): 273654680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 9560, 22727, 45454, 90908, 113635, 181816, 227270, 454540, 909080, 5431753, 10863506, 21727012, 27158765, 43454024, 54317530, 108635060, 217270120]

約数ペア:

[(1, 217270120), (2, 108635060), (4, 54317530), (5, 43454024), (8, 27158765), (10, 21727012), (20, 10863506), (40, 5431753), (239, 909080), (478, 454540), (956, 227270), (1195, 181816), (1912, 113635), (2390, 90908), (4780, 45454), (9560, 22727)]