81269440

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:175

約数の個数: 168

約数和(自身を含む): 231416352

約数和(自身を除く): 150146912

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 71, 73, 80, 98, 112, 140, 142, 146, 160, 196, 224, 245, 280, 284, 292, 320, 355, 365, 392, 448, 490, 497, 511, 560, 568, 584, 710, 730, 784, 980, 994, 1022, 1120, 1136, 1168, 1420, 1460, 1568, 1960, 1988, 2044, 2240, 2272, 2336, 2485, 2555, 2840, 2920, 3136, 3479, 3577, 3920, 3976, 4088, 4544, 4672, 4970, 5110, 5183, 5680, 5840, 6958, 7154, 7840, 7952, 8176, 9940, 10220, 10366, 11360, 11680, 13916, 14308, 15680, 15904, 16352, 17395, 17885, 19880, 20440, 20732, 22720, 23360, 25915, 27832, 28616, 31808, 32704, 34790, 35770, 36281, 39760, 40880, 41464, 51830, 55664, 57232, 69580, 71540, 72562, 79520, 81760, 82928, 103660, 111328, 114464, 139160, 143080, 145124, 159040, 163520, 165856, 181405, 207320, 222656, 228928, 253967, 278320, 286160, 290248, 331712, 362810, 414640, 507934, 556640, 572320, 580496, 725620, 829280, 1015868, 1113280, 1144640, 1160992, 1269835, 1451240, 1658560, 2031736, 2321984, 2539670, 2902480, 4063472, 5079340, 5804960, 8126944, 10158680, 11609920, 16253888, 20317360, 40634720, 81269440]

約数ペア:

[(1, 81269440), (2, 40634720), (4, 20317360), (5, 16253888), (7, 11609920), (8, 10158680), (10, 8126944), (14, 5804960), (16, 5079340), (20, 4063472), (28, 2902480), (32, 2539670), (35, 2321984), (40, 2031736), (49, 1658560), (56, 1451240), (64, 1269835), (70, 1160992), (71, 1144640), (73, 1113280), (80, 1015868), (98, 829280), (112, 725620), (140, 580496), (142, 572320), (146, 556640), (160, 507934), (196, 414640), (224, 362810), (245, 331712), (280, 290248), (284, 286160), (292, 278320), (320, 253967), (355, 228928), (365, 222656), (392, 207320), (448, 181405), (490, 165856), (497, 163520), (511, 159040), (560, 145124), (568, 143080), (584, 139160), (710, 114464), (730, 111328), (784, 103660), (980, 82928), (994, 81760), (1022, 79520), (1120, 72562), (1136, 71540), (1168, 69580), (1420, 57232), (1460, 55664), (1568, 51830), (1960, 41464), (1988, 40880), (2044, 39760), (2240, 36281), (2272, 35770), (2336, 34790), (2485, 32704), (2555, 31808), (2840, 28616), (2920, 27832), (3136, 25915), (3479, 23360), (3577, 22720), (3920, 20732), (3976, 20440), (4088, 19880), (4544, 17885), (4672, 17395), (4970, 16352), (5110, 15904), (5183, 15680), (5680, 14308), (5840, 13916), (6958, 11680), (7154, 11360), (7840, 10366), (7952, 10220), (8176, 9940)]