1278760420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{480737}}^1$

素因数の和:480772

約数の個数: 48

約数和(自身を含む): 3230559360

約数和(自身を除く): 1951798940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 480737, 961474, 1922948, 2403685, 3365159, 4807370, 6730318, 9134003, 9614740, 13460636, 16825795, 18268006, 33651590, 36536012, 45670015, 63938021, 67303180, 91340030, 127876042, 182680060, 255752084, 319690105, 639380210, 1278760420]

約数ペア:

[(1, 1278760420), (2, 639380210), (4, 319690105), (5, 255752084), (7, 182680060), (10, 127876042), (14, 91340030), (19, 67303180), (20, 63938021), (28, 45670015), (35, 36536012), (38, 33651590), (70, 18268006), (76, 16825795), (95, 13460636), (133, 9614740), (140, 9134003), (190, 6730318), (266, 4807370), (380, 3365159), (532, 2403685), (665, 1922948), (1330, 961474), (2660, 480737)]