209903940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{388711}}^1$

素因数の和:388729

約数の個数: 48

約数和(自身を含む): 653036160

約数和(自身を除く): 443132220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 388711, 777422, 1166133, 1554844, 1943555, 2332266, 3498399, 3887110, 4664532, 5830665, 6996798, 7774220, 10495197, 11661330, 13993596, 17491995, 20990394, 23322660, 34983990, 41980788, 52475985, 69967980, 104951970, 209903940]

約数ペア:

[(1, 209903940), (2, 104951970), (3, 69967980), (4, 52475985), (5, 41980788), (6, 34983990), (9, 23322660), (10, 20990394), (12, 17491995), (15, 13993596), (18, 11661330), (20, 10495197), (27, 7774220), (30, 6996798), (36, 5830665), (45, 4664532), (54, 3887110), (60, 3498399), (90, 2332266), (108, 1943555), (135, 1554844), (180, 1166133), (270, 777422), (540, 388711)]