205990120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{105097}}^1$

素因数の和:105122

約数の個数: 48

約数和(自身を含む): 539152740

約数和(自身を除く): 333162620

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 105097, 210194, 420388, 525485, 735679, 840776, 1050970, 1471358, 2101940, 2942716, 3678395, 4203880, 5149753, 5885432, 7356790, 10299506, 14713580, 20599012, 25748765, 29427160, 41198024, 51497530, 102995060, 205990120]

約数ペア:

[(1, 205990120), (2, 102995060), (4, 51497530), (5, 41198024), (7, 29427160), (8, 25748765), (10, 20599012), (14, 14713580), (20, 10299506), (28, 7356790), (35, 5885432), (40, 5149753), (49, 4203880), (56, 3678395), (70, 2942716), (98, 2101940), (140, 1471358), (196, 1050970), (245, 840776), (280, 735679), (392, 525485), (490, 420388), (980, 210194), (1960, 105097)]