678780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{419}}^1$

素因数の和:440

約数の個数: 60

約数和(自身を含む): 2134440

約数和(自身を除く): 1455660

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, 270, 324, 405, 419, 540, 810, 838, 1257, 1620, 1676, 2095, 2514, 3771, 4190, 5028, 6285, 7542, 8380, 11313, 12570, 15084, 18855, 22626, 25140, 33939, 37710, 45252, 56565, 67878, 75420, 113130, 135756, 169695, 226260, 339390, 678780]

約数ペア:

[(1, 678780), (2, 339390), (3, 226260), (4, 169695), (5, 135756), (6, 113130), (9, 75420), (10, 67878), (12, 56565), (15, 45252), (18, 37710), (20, 33939), (27, 25140), (30, 22626), (36, 18855), (45, 15084), (54, 12570), (60, 11313), (81, 8380), (90, 7542), (108, 6285), (135, 5028), (162, 4190), (180, 3771), (270, 2514), (324, 2095), (405, 1676), (419, 1620), (540, 1257), (810, 838)]