256556340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{4583}}^1$

素因数の和:4909

約数の個数: 72

約数和(自身を含む): 780893568

約数和(自身を除く): 524337228

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 311, 622, 933, 1244, 1555, 1866, 2799, 3110, 3732, 4583, 4665, 5598, 6220, 9166, 9330, 11196, 13749, 13995, 18332, 18660, 22915, 27498, 27990, 41247, 45830, 54996, 55980, 68745, 82494, 91660, 137490, 164988, 206235, 274980, 412470, 824940, 1425313, 2850626, 4275939, 5701252, 7126565, 8551878, 12827817, 14253130, 17103756, 21379695, 25655634, 28506260, 42759390, 51311268, 64139085, 85518780, 128278170, 256556340]

約数ペア:

[(1, 256556340), (2, 128278170), (3, 85518780), (4, 64139085), (5, 51311268), (6, 42759390), (9, 28506260), (10, 25655634), (12, 21379695), (15, 17103756), (18, 14253130), (20, 12827817), (30, 8551878), (36, 7126565), (45, 5701252), (60, 4275939), (90, 2850626), (180, 1425313), (311, 824940), (622, 412470), (933, 274980), (1244, 206235), (1555, 164988), (1866, 137490), (2799, 91660), (3110, 82494), (3732, 68745), (4583, 55980), (4665, 54996), (5598, 45830), (6220, 41247), (9166, 27990), (9330, 27498), (11196, 22915), (13749, 18660), (13995, 18332)]