81876480

素因数分解:

$2^9\times 3^1\times 5^1\times 7^1\times {\mathrm{1523}}^1$

素因数の和:1556

約数の個数: 160

約数和(自身を含む): 299337984

約数和(自身を除く): 217461504

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 512, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1523, 1536, 1680, 1792, 1920, 2240, 2560, 2688, 3046, 3360, 3584, 3840, 4480, 4569, 5376, 6092, 6720, 7615, 7680, 8960, 9138, 10661, 10752, 12184, 13440, 15230, 17920, 18276, 21322, 22845, 24368, 26880, 30460, 31983, 36552, 42644, 45690, 48736, 53305, 53760, 60920, 63966, 73104, 85288, 91380, 97472, 106610, 121840, 127932, 146208, 159915, 170576, 182760, 194944, 213220, 243680, 255864, 292416, 319830, 341152, 365520, 389888, 426440, 487360, 511728, 584832, 639660, 682304, 731040, 779776, 852880, 974720, 1023456, 1169664, 1279320, 1364608, 1462080, 1705760, 1949440, 2046912, 2339328, 2558640, 2729216, 2924160, 3411520, 3898880, 4093824, 5117280, 5458432, 5848320, 6823040, 8187648, 10234560, 11696640, 13646080, 16375296, 20469120, 27292160, 40938240, 81876480]

約数ペア:

[(1, 81876480), (2, 40938240), (3, 27292160), (4, 20469120), (5, 16375296), (6, 13646080), (7, 11696640), (8, 10234560), (10, 8187648), (12, 6823040), (14, 5848320), (15, 5458432), (16, 5117280), (20, 4093824), (21, 3898880), (24, 3411520), (28, 2924160), (30, 2729216), (32, 2558640), (35, 2339328), (40, 2046912), (42, 1949440), (48, 1705760), (56, 1462080), (60, 1364608), (64, 1279320), (70, 1169664), (80, 1023456), (84, 974720), (96, 852880), (105, 779776), (112, 731040), (120, 682304), (128, 639660), (140, 584832), (160, 511728), (168, 487360), (192, 426440), (210, 389888), (224, 365520), (240, 341152), (256, 319830), (280, 292416), (320, 255864), (336, 243680), (384, 213220), (420, 194944), (448, 182760), (480, 170576), (512, 159915), (560, 146208), (640, 127932), (672, 121840), (768, 106610), (840, 97472), (896, 91380), (960, 85288), (1120, 73104), (1280, 63966), (1344, 60920), (1523, 53760), (1536, 53305), (1680, 48736), (1792, 45690), (1920, 42644), (2240, 36552), (2560, 31983), (2688, 30460), (3046, 26880), (3360, 24368), (3584, 22845), (3840, 21322), (4480, 18276), (4569, 17920), (5376, 15230), (6092, 13440), (6720, 12184), (7615, 10752), (7680, 10661), (8960, 9138)]