1274721280

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{5081}}^1$

素因数の和:5120

約数の個数: 132

約数和(自身を含む): 3557776068

約数和(自身を除く): 2283054788

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 512, 560, 640, 784, 896, 980, 1024, 1120, 1280, 1568, 1792, 1960, 2240, 2560, 3136, 3584, 3920, 4480, 5081, 5120, 6272, 7168, 7840, 8960, 10162, 12544, 15680, 17920, 20324, 25088, 25405, 31360, 35567, 35840, 40648, 50176, 50810, 62720, 71134, 81296, 101620, 125440, 142268, 162592, 177835, 203240, 248969, 250880, 284536, 325184, 355670, 406480, 497938, 569072, 650368, 711340, 812960, 995876, 1138144, 1244845, 1300736, 1422680, 1625920, 1991752, 2276288, 2489690, 2601472, 2845360, 3251840, 3983504, 4552576, 4979380, 5202944, 5690720, 6503680, 7967008, 9105152, 9958760, 11381440, 13007360, 15934016, 18210304, 19917520, 22762880, 26014720, 31868032, 36420608, 39835040, 45525760, 63736064, 79670080, 91051520, 127472128, 159340160, 182103040, 254944256, 318680320, 637360640, 1274721280]

約数ペア:

[(1, 1274721280), (2, 637360640), (4, 318680320), (5, 254944256), (7, 182103040), (8, 159340160), (10, 127472128), (14, 91051520), (16, 79670080), (20, 63736064), (28, 45525760), (32, 39835040), (35, 36420608), (40, 31868032), (49, 26014720), (56, 22762880), (64, 19917520), (70, 18210304), (80, 15934016), (98, 13007360), (112, 11381440), (128, 9958760), (140, 9105152), (160, 7967008), (196, 6503680), (224, 5690720), (245, 5202944), (256, 4979380), (280, 4552576), (320, 3983504), (392, 3251840), (448, 2845360), (490, 2601472), (512, 2489690), (560, 2276288), (640, 1991752), (784, 1625920), (896, 1422680), (980, 1300736), (1024, 1244845), (1120, 1138144), (1280, 995876), (1568, 812960), (1792, 711340), (1960, 650368), (2240, 569072), (2560, 497938), (3136, 406480), (3584, 355670), (3920, 325184), (4480, 284536), (5081, 250880), (5120, 248969), (6272, 203240), (7168, 177835), (7840, 162592), (8960, 142268), (10162, 125440), (12544, 101620), (15680, 81296), (17920, 71134), (20324, 62720), (25088, 50810), (25405, 50176), (31360, 40648), (35567, 35840)]