81034240

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:75

約数の個数: 264

約数和(自身を含む): 252026640

約数和(自身を除く): 170992400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 19, 20, 28, 32, 34, 35, 38, 40, 49, 56, 64, 68, 70, 76, 80, 85, 95, 98, 112, 119, 128, 133, 136, 140, 152, 160, 170, 190, 196, 224, 238, 245, 256, 266, 272, 280, 304, 320, 323, 340, 380, 392, 448, 476, 490, 512, 532, 544, 560, 595, 608, 640, 646, 665, 680, 760, 784, 833, 896, 931, 952, 980, 1024, 1064, 1088, 1120, 1190, 1216, 1280, 1292, 1330, 1360, 1520, 1568, 1615, 1666, 1792, 1862, 1904, 1960, 2128, 2176, 2240, 2261, 2380, 2432, 2560, 2584, 2660, 2720, 3040, 3136, 3230, 3332, 3584, 3724, 3808, 3920, 4165, 4256, 4352, 4480, 4522, 4655, 4760, 4864, 5120, 5168, 5320, 5440, 6080, 6272, 6460, 6664, 7168, 7448, 7616, 7840, 8330, 8512, 8704, 8960, 9044, 9310, 9520, 9728, 10336, 10640, 10880, 11305, 12160, 12544, 12920, 13328, 14896, 15232, 15680, 15827, 16660, 17024, 17408, 17920, 18088, 18620, 19040, 19456, 20672, 21280, 21760, 22610, 24320, 25088, 25840, 26656, 29792, 30464, 31360, 31654, 33320, 34048, 35840, 36176, 37240, 38080, 41344, 42560, 43520, 45220, 48640, 50176, 51680, 53312, 59584, 60928, 62720, 63308, 66640, 68096, 72352, 74480, 76160, 79135, 82688, 85120, 87040, 90440, 97280, 103360, 106624, 119168, 121856, 125440, 126616, 133280, 136192, 144704, 148960, 152320, 158270, 165376, 170240, 180880, 206720, 213248, 238336, 250880, 253232, 266560, 289408, 297920, 304640, 316540, 330752, 340480, 361760, 413440, 426496, 476672, 506464, 533120, 578816, 595840, 609280, 633080, 680960, 723520, 826880, 852992, 953344, 1012928, 1066240, 1157632, 1191680, 1266160, 1447040, 1653760, 2025856, 2132480, 2315264, 2383360, 2532320, 2894080, 4051712, 4264960, 4766720, 5064640, 5788160, 8103424, 10129280, 11576320, 16206848, 20258560, 40517120, 81034240]

約数ペア:

[(1, 81034240), (2, 40517120), (4, 20258560), (5, 16206848), (7, 11576320), (8, 10129280), (10, 8103424), (14, 5788160), (16, 5064640), (17, 4766720), (19, 4264960), (20, 4051712), (28, 2894080), (32, 2532320), (34, 2383360), (35, 2315264), (38, 2132480), (40, 2025856), (49, 1653760), (56, 1447040), (64, 1266160), (68, 1191680), (70, 1157632), (76, 1066240), (80, 1012928), (85, 953344), (95, 852992), (98, 826880), (112, 723520), (119, 680960), (128, 633080), (133, 609280), (136, 595840), (140, 578816), (152, 533120), (160, 506464), (170, 476672), (190, 426496), (196, 413440), (224, 361760), (238, 340480), (245, 330752), (256, 316540), (266, 304640), (272, 297920), (280, 289408), (304, 266560), (320, 253232), (323, 250880), (340, 238336), (380, 213248), (392, 206720), (448, 180880), (476, 170240), (490, 165376), (512, 158270), (532, 152320), (544, 148960), (560, 144704), (595, 136192), (608, 133280), (640, 126616), (646, 125440), (665, 121856), (680, 119168), (760, 106624), (784, 103360), (833, 97280), (896, 90440), (931, 87040), (952, 85120), (980, 82688), (1024, 79135), (1064, 76160), (1088, 74480), (1120, 72352), (1190, 68096), (1216, 66640), (1280, 63308), (1292, 62720), (1330, 60928), (1360, 59584), (1520, 53312), (1568, 51680), (1615, 50176), (1666, 48640), (1792, 45220), (1862, 43520), (1904, 42560), (1960, 41344), (2128, 38080), (2176, 37240), (2240, 36176), (2261, 35840), (2380, 34048), (2432, 33320), (2560, 31654), (2584, 31360), (2660, 30464), (2720, 29792), (3040, 26656), (3136, 25840), (3230, 25088), (3332, 24320), (3584, 22610), (3724, 21760), (3808, 21280), (3920, 20672), (4165, 19456), (4256, 19040), (4352, 18620), (4480, 18088), (4522, 17920), (4655, 17408), (4760, 17024), (4864, 16660), (5120, 15827), (5168, 15680), (5320, 15232), (5440, 14896), (6080, 13328), (6272, 12920), (6460, 12544), (6664, 12160), (7168, 11305), (7448, 10880), (7616, 10640), (7840, 10336), (8330, 9728), (8512, 9520), (8704, 9310), (8960, 9044)]