406620

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{251}}^1$

素因数の和:272

約数の個数: 60

約数和(自身を含む): 1280664

約数和(自身を除く): 874044

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 251, 270, 324, 405, 502, 540, 753, 810, 1004, 1255, 1506, 1620, 2259, 2510, 3012, 3765, 4518, 5020, 6777, 7530, 9036, 11295, 13554, 15060, 20331, 22590, 27108, 33885, 40662, 45180, 67770, 81324, 101655, 135540, 203310, 406620]

約数ペア:

[(1, 406620), (2, 203310), (3, 135540), (4, 101655), (5, 81324), (6, 67770), (9, 45180), (10, 40662), (12, 33885), (15, 27108), (18, 22590), (20, 20331), (27, 15060), (30, 13554), (36, 11295), (45, 9036), (54, 7530), (60, 6777), (81, 5020), (90, 4518), (108, 3765), (135, 3012), (162, 2510), (180, 2259), (251, 1620), (270, 1506), (324, 1255), (405, 1004), (502, 810), (540, 753)]