321840

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{149}}^1$

素因数の和:171

約数の個数: 80

約数和(自身を含む): 1116000

約数和(自身を除く): 794160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 149, 180, 216, 240, 270, 298, 360, 432, 447, 540, 596, 720, 745, 894, 1080, 1192, 1341, 1490, 1788, 2160, 2235, 2384, 2682, 2980, 3576, 4023, 4470, 5364, 5960, 6705, 7152, 8046, 8940, 10728, 11920, 13410, 16092, 17880, 20115, 21456, 26820, 32184, 35760, 40230, 53640, 64368, 80460, 107280, 160920, 321840]

約数ペア:

[(1, 321840), (2, 160920), (3, 107280), (4, 80460), (5, 64368), (6, 53640), (8, 40230), (9, 35760), (10, 32184), (12, 26820), (15, 21456), (16, 20115), (18, 17880), (20, 16092), (24, 13410), (27, 11920), (30, 10728), (36, 8940), (40, 8046), (45, 7152), (48, 6705), (54, 5960), (60, 5364), (72, 4470), (80, 4023), (90, 3576), (108, 2980), (120, 2682), (135, 2384), (144, 2235), (149, 2160), (180, 1788), (216, 1490), (240, 1341), (270, 1192), (298, 1080), (360, 894), (432, 745), (447, 720), (540, 596)]