81172320

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{643}}^1$

素因数の和:924

約数の個数: 96

約数和(自身を含む): 257064192

約数和(自身を除く): 175891872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 263, 480, 526, 643, 789, 1052, 1286, 1315, 1578, 1929, 2104, 2572, 2630, 3156, 3215, 3858, 3945, 4208, 5144, 5260, 6312, 6430, 7716, 7890, 8416, 9645, 10288, 10520, 12624, 12860, 15432, 15780, 19290, 20576, 21040, 25248, 25720, 30864, 31560, 38580, 42080, 51440, 61728, 63120, 77160, 102880, 126240, 154320, 169109, 308640, 338218, 507327, 676436, 845545, 1014654, 1352872, 1691090, 2029308, 2536635, 2705744, 3382180, 4058616, 5073270, 5411488, 6764360, 8117232, 10146540, 13528720, 16234464, 20293080, 27057440, 40586160, 81172320]

約数ペア:

[(1, 81172320), (2, 40586160), (3, 27057440), (4, 20293080), (5, 16234464), (6, 13528720), (8, 10146540), (10, 8117232), (12, 6764360), (15, 5411488), (16, 5073270), (20, 4058616), (24, 3382180), (30, 2705744), (32, 2536635), (40, 2029308), (48, 1691090), (60, 1352872), (80, 1014654), (96, 845545), (120, 676436), (160, 507327), (240, 338218), (263, 308640), (480, 169109), (526, 154320), (643, 126240), (789, 102880), (1052, 77160), (1286, 63120), (1315, 61728), (1578, 51440), (1929, 42080), (2104, 38580), (2572, 31560), (2630, 30864), (3156, 25720), (3215, 25248), (3858, 21040), (3945, 20576), (4208, 19290), (5144, 15780), (5260, 15432), (6312, 12860), (6430, 12624), (7716, 10520), (7890, 10288), (8416, 9645)]