81954720

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:396

約数の個数: 192

約数和(自身を含む): 292481280

約数和(自身を除く): 210526560

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, 61, 72, 80, 90, 96, 108, 120, 122, 135, 144, 160, 180, 183, 216, 240, 244, 270, 288, 305, 311, 360, 366, 432, 480, 488, 540, 549, 610, 622, 720, 732, 864, 915, 933, 976, 1080, 1098, 1220, 1244, 1440, 1464, 1555, 1647, 1830, 1866, 1952, 2160, 2196, 2440, 2488, 2745, 2799, 2928, 3110, 3294, 3660, 3732, 4320, 4392, 4665, 4880, 4976, 5490, 5598, 5856, 6220, 6588, 7320, 7464, 8235, 8397, 8784, 9330, 9760, 9952, 10980, 11196, 12440, 13176, 13995, 14640, 14928, 16470, 16794, 17568, 18660, 18971, 21960, 22392, 24880, 26352, 27990, 29280, 29856, 32940, 33588, 37320, 37942, 41985, 43920, 44784, 49760, 52704, 55980, 56913, 65880, 67176, 74640, 75884, 83970, 87840, 89568, 94855, 111960, 113826, 131760, 134352, 149280, 151768, 167940, 170739, 189710, 223920, 227652, 263520, 268704, 284565, 303536, 335880, 341478, 379420, 447840, 455304, 512217, 569130, 607072, 671760, 682956, 758840, 853695, 910608, 1024434, 1138260, 1343520, 1365912, 1517680, 1707390, 1821216, 2048868, 2276520, 2561085, 2731824, 3035360, 3414780, 4097736, 4553040, 5122170, 5463648, 6829560, 8195472, 9106080, 10244340, 13659120, 16390944, 20488680, 27318240, 40977360, 81954720]

約数ペア:

[(1, 81954720), (2, 40977360), (3, 27318240), (4, 20488680), (5, 16390944), (6, 13659120), (8, 10244340), (9, 9106080), (10, 8195472), (12, 6829560), (15, 5463648), (16, 5122170), (18, 4553040), (20, 4097736), (24, 3414780), (27, 3035360), (30, 2731824), (32, 2561085), (36, 2276520), (40, 2048868), (45, 1821216), (48, 1707390), (54, 1517680), (60, 1365912), (61, 1343520), (72, 1138260), (80, 1024434), (90, 910608), (96, 853695), (108, 758840), (120, 682956), (122, 671760), (135, 607072), (144, 569130), (160, 512217), (180, 455304), (183, 447840), (216, 379420), (240, 341478), (244, 335880), (270, 303536), (288, 284565), (305, 268704), (311, 263520), (360, 227652), (366, 223920), (432, 189710), (480, 170739), (488, 167940), (540, 151768), (549, 149280), (610, 134352), (622, 131760), (720, 113826), (732, 111960), (864, 94855), (915, 89568), (933, 87840), (976, 83970), (1080, 75884), (1098, 74640), (1220, 67176), (1244, 65880), (1440, 56913), (1464, 55980), (1555, 52704), (1647, 49760), (1830, 44784), (1866, 43920), (1952, 41985), (2160, 37942), (2196, 37320), (2440, 33588), (2488, 32940), (2745, 29856), (2799, 29280), (2928, 27990), (3110, 26352), (3294, 24880), (3660, 22392), (3732, 21960), (4320, 18971), (4392, 18660), (4665, 17568), (4880, 16794), (4976, 16470), (5490, 14928), (5598, 14640), (5856, 13995), (6220, 13176), (6588, 12440), (7320, 11196), (7464, 10980), (8235, 9952), (8397, 9760), (8784, 9330)]