20214339940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{545449}}^1$

素因数の和:545584

約数の個数: 48

約数和(自身を含む): 45359622000

約数和(自身を除く): 25145282060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 340, 436, 545, 1090, 1853, 2180, 3706, 7412, 9265, 18530, 37060, 545449, 1090898, 2181796, 2727245, 5454490, 9272633, 10908980, 18545266, 37090532, 46363165, 59453941, 92726330, 118907882, 185452660, 237815764, 297269705, 594539410, 1010716997, 1189078820, 2021433994, 4042867988, 5053584985, 10107169970, 20214339940]

約数ペア:

[(1, 20214339940), (2, 10107169970), (4, 5053584985), (5, 4042867988), (10, 2021433994), (17, 1189078820), (20, 1010716997), (34, 594539410), (68, 297269705), (85, 237815764), (109, 185452660), (170, 118907882), (218, 92726330), (340, 59453941), (436, 46363165), (545, 37090532), (1090, 18545266), (1853, 10908980), (2180, 9272633), (3706, 5454490), (7412, 2727245), (9265, 2181796), (18530, 1090898), (37060, 545449)]