495364220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1905247}}^1$

素因数の和:1905269

約数の個数: 24

約数和(自身を含む): 1120285824

約数和(自身を除く): 624921604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1905247, 3810494, 7620988, 9526235, 19052470, 24768211, 38104940, 49536422, 99072844, 123841055, 247682110, 495364220]

約数ペア:

[(1, 495364220), (2, 247682110), (4, 123841055), (5, 99072844), (10, 49536422), (13, 38104940), (20, 24768211), (26, 19052470), (52, 9526235), (65, 7620988), (130, 3810494), (260, 1905247)]