1587820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 3725568

約数和(自身を除く): 2137748

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 197, 260, 310, 394, 403, 620, 788, 806, 985, 1612, 1970, 2015, 2561, 3940, 4030, 5122, 6107, 8060, 10244, 12214, 12805, 24428, 25610, 30535, 51220, 61070, 79391, 122140, 158782, 317564, 396955, 793910, 1587820]

約数ペア:

[(1, 1587820), (2, 793910), (4, 396955), (5, 317564), (10, 158782), (13, 122140), (20, 79391), (26, 61070), (31, 51220), (52, 30535), (62, 25610), (65, 24428), (124, 12805), (130, 12214), (155, 10244), (197, 8060), (260, 6107), (310, 5122), (394, 4030), (403, 3940), (620, 2561), (788, 2015), (806, 1970), (985, 1612)]