280406520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{778907}}^1$

素因数の和:778924

約数の個数: 48

約数和(自身を含む): 911322360

約数和(自身を除く): 630915840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 778907, 1557814, 2336721, 3115628, 3894535, 4673442, 6231256, 7010163, 7789070, 9346884, 11683605, 14020326, 15578140, 18693768, 23367210, 28040652, 31156280, 35050815, 46734420, 56081304, 70101630, 93468840, 140203260, 280406520]

約数ペア:

[(1, 280406520), (2, 140203260), (3, 93468840), (4, 70101630), (5, 56081304), (6, 46734420), (8, 35050815), (9, 31156280), (10, 28040652), (12, 23367210), (15, 18693768), (18, 15578140), (20, 14020326), (24, 11683605), (30, 9346884), (36, 7789070), (40, 7010163), (45, 6231256), (60, 4673442), (72, 3894535), (90, 3115628), (120, 2336721), (180, 1557814), (360, 778907)]