261125440

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2087}}^1$

素因数の和:2144

約数の個数: 112

約数和(自身を含む): 687336192

約数和(自身を除く): 426210752

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 64, 68, 80, 85, 92, 115, 136, 160, 170, 184, 230, 272, 320, 340, 368, 391, 460, 544, 680, 736, 782, 920, 1088, 1360, 1472, 1564, 1840, 1955, 2087, 2720, 3128, 3680, 3910, 4174, 5440, 6256, 7360, 7820, 8348, 10435, 12512, 15640, 16696, 20870, 25024, 31280, 33392, 35479, 41740, 48001, 62560, 66784, 70958, 83480, 96002, 125120, 133568, 141916, 166960, 177395, 192004, 240005, 283832, 333920, 354790, 384008, 480010, 567664, 667840, 709580, 768016, 816017, 960020, 1135328, 1419160, 1536032, 1632034, 1920040, 2270656, 2838320, 3072064, 3264068, 3840080, 4080085, 5676640, 6528136, 7680160, 8160170, 11353280, 13056272, 15360320, 16320340, 26112544, 32640680, 52225088, 65281360, 130562720, 261125440]

約数ペア:

[(1, 261125440), (2, 130562720), (4, 65281360), (5, 52225088), (8, 32640680), (10, 26112544), (16, 16320340), (17, 15360320), (20, 13056272), (23, 11353280), (32, 8160170), (34, 7680160), (40, 6528136), (46, 5676640), (64, 4080085), (68, 3840080), (80, 3264068), (85, 3072064), (92, 2838320), (115, 2270656), (136, 1920040), (160, 1632034), (170, 1536032), (184, 1419160), (230, 1135328), (272, 960020), (320, 816017), (340, 768016), (368, 709580), (391, 667840), (460, 567664), (544, 480010), (680, 384008), (736, 354790), (782, 333920), (920, 283832), (1088, 240005), (1360, 192004), (1472, 177395), (1564, 166960), (1840, 141916), (1955, 133568), (2087, 125120), (2720, 96002), (3128, 83480), (3680, 70958), (3910, 66784), (4174, 62560), (5440, 48001), (6256, 41740), (7360, 35479), (7820, 33392), (8348, 31280), (10435, 25024), (12512, 20870), (15640, 16696)]