281236480

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:117

約数の個数: 264

約数和(自身を含む): 840088800

約数和(自身を除く): 558852320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 59, 64, 70, 76, 80, 95, 98, 112, 118, 128, 133, 140, 152, 160, 190, 196, 224, 236, 245, 256, 266, 280, 295, 304, 320, 380, 392, 413, 448, 472, 490, 512, 532, 560, 590, 608, 640, 665, 760, 784, 826, 896, 931, 944, 980, 1024, 1064, 1120, 1121, 1180, 1216, 1280, 1330, 1520, 1568, 1652, 1792, 1862, 1888, 1960, 2065, 2128, 2240, 2242, 2360, 2432, 2560, 2660, 2891, 3040, 3136, 3304, 3584, 3724, 3776, 3920, 4130, 4256, 4480, 4484, 4655, 4720, 4864, 5120, 5320, 5605, 5782, 6080, 6272, 6608, 7168, 7448, 7552, 7840, 7847, 8260, 8512, 8960, 8968, 9310, 9440, 9728, 10640, 11210, 11564, 12160, 12544, 13216, 14455, 14896, 15104, 15680, 15694, 16520, 17024, 17920, 17936, 18620, 18880, 19456, 21280, 22420, 23128, 24320, 25088, 26432, 28910, 29792, 30208, 31360, 31388, 33040, 34048, 35840, 35872, 37240, 37760, 39235, 42560, 44840, 46256, 48640, 50176, 52864, 54929, 57820, 59584, 60416, 62720, 62776, 66080, 68096, 71744, 74480, 75520, 78470, 85120, 89680, 92512, 97280, 105728, 109858, 115640, 119168, 125440, 125552, 132160, 136192, 143488, 148960, 151040, 156940, 170240, 179360, 185024, 211456, 219716, 231280, 238336, 250880, 251104, 264320, 274645, 286976, 297920, 302080, 313880, 340480, 358720, 370048, 422912, 439432, 462560, 476672, 502208, 528640, 549290, 573952, 595840, 627760, 680960, 717440, 740096, 878864, 925120, 953344, 1004416, 1057280, 1098580, 1147904, 1191680, 1255520, 1434880, 1480192, 1757728, 1850240, 2008832, 2114560, 2197160, 2383360, 2511040, 2869760, 2960384, 3515456, 3700480, 4017664, 4394320, 4766720, 5022080, 5739520, 7030912, 7400960, 8035328, 8788640, 10044160, 14061824, 14801920, 17577280, 20088320, 28123648, 35154560, 40176640, 56247296, 70309120, 140618240, 281236480]

約数ペア:

[(1, 281236480), (2, 140618240), (4, 70309120), (5, 56247296), (7, 40176640), (8, 35154560), (10, 28123648), (14, 20088320), (16, 17577280), (19, 14801920), (20, 14061824), (28, 10044160), (32, 8788640), (35, 8035328), (38, 7400960), (40, 7030912), (49, 5739520), (56, 5022080), (59, 4766720), (64, 4394320), (70, 4017664), (76, 3700480), (80, 3515456), (95, 2960384), (98, 2869760), (112, 2511040), (118, 2383360), (128, 2197160), (133, 2114560), (140, 2008832), (152, 1850240), (160, 1757728), (190, 1480192), (196, 1434880), (224, 1255520), (236, 1191680), (245, 1147904), (256, 1098580), (266, 1057280), (280, 1004416), (295, 953344), (304, 925120), (320, 878864), (380, 740096), (392, 717440), (413, 680960), (448, 627760), (472, 595840), (490, 573952), (512, 549290), (532, 528640), (560, 502208), (590, 476672), (608, 462560), (640, 439432), (665, 422912), (760, 370048), (784, 358720), (826, 340480), (896, 313880), (931, 302080), (944, 297920), (980, 286976), (1024, 274645), (1064, 264320), (1120, 251104), (1121, 250880), (1180, 238336), (1216, 231280), (1280, 219716), (1330, 211456), (1520, 185024), (1568, 179360), (1652, 170240), (1792, 156940), (1862, 151040), (1888, 148960), (1960, 143488), (2065, 136192), (2128, 132160), (2240, 125552), (2242, 125440), (2360, 119168), (2432, 115640), (2560, 109858), (2660, 105728), (2891, 97280), (3040, 92512), (3136, 89680), (3304, 85120), (3584, 78470), (3724, 75520), (3776, 74480), (3920, 71744), (4130, 68096), (4256, 66080), (4480, 62776), (4484, 62720), (4655, 60416), (4720, 59584), (4864, 57820), (5120, 54929), (5320, 52864), (5605, 50176), (5782, 48640), (6080, 46256), (6272, 44840), (6608, 42560), (7168, 39235), (7448, 37760), (7552, 37240), (7840, 35872), (7847, 35840), (8260, 34048), (8512, 33040), (8960, 31388), (8968, 31360), (9310, 30208), (9440, 29792), (9728, 28910), (10640, 26432), (11210, 25088), (11564, 24320), (12160, 23128), (12544, 22420), (13216, 21280), (14455, 19456), (14896, 18880), (15104, 18620), (15680, 17936), (15694, 17920), (16520, 17024)]