81397440

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{9421}}^1$

素因数の和:9447

約数の個数: 112

約数和(自身を含む): 287182560

約数和(自身を除く): 205785120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 432, 480, 540, 576, 720, 864, 960, 1080, 1440, 1728, 2160, 2880, 4320, 8640, 9421, 18842, 28263, 37684, 47105, 56526, 75368, 84789, 94210, 113052, 141315, 150736, 169578, 188420, 226104, 254367, 282630, 301472, 339156, 376840, 423945, 452208, 508734, 565260, 602944, 678312, 753680, 847890, 904416, 1017468, 1130520, 1271835, 1356624, 1507360, 1695780, 1808832, 2034936, 2261040, 2543670, 2713248, 3014720, 3391560, 4069872, 4522080, 5087340, 5426496, 6783120, 8139744, 9044160, 10174680, 13566240, 16279488, 20349360, 27132480, 40698720, 81397440]

約数ペア:

[(1, 81397440), (2, 40698720), (3, 27132480), (4, 20349360), (5, 16279488), (6, 13566240), (8, 10174680), (9, 9044160), (10, 8139744), (12, 6783120), (15, 5426496), (16, 5087340), (18, 4522080), (20, 4069872), (24, 3391560), (27, 3014720), (30, 2713248), (32, 2543670), (36, 2261040), (40, 2034936), (45, 1808832), (48, 1695780), (54, 1507360), (60, 1356624), (64, 1271835), (72, 1130520), (80, 1017468), (90, 904416), (96, 847890), (108, 753680), (120, 678312), (135, 602944), (144, 565260), (160, 508734), (180, 452208), (192, 423945), (216, 376840), (240, 339156), (270, 301472), (288, 282630), (320, 254367), (360, 226104), (432, 188420), (480, 169578), (540, 150736), (576, 141315), (720, 113052), (864, 94210), (960, 84789), (1080, 75368), (1440, 56526), (1728, 47105), (2160, 37684), (2880, 28263), (4320, 18842), (8640, 9421)]