81429920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3559}}^1$

素因数の和:3598

約数の個数: 96

約数和(自身を含む): 226074240

約数和(自身を除く): 144644320

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 160, 176, 208, 220, 260, 286, 352, 416, 440, 520, 572, 715, 880, 1040, 1144, 1430, 1760, 2080, 2288, 2860, 3559, 4576, 5720, 7118, 11440, 14236, 17795, 22880, 28472, 35590, 39149, 46267, 56944, 71180, 78298, 92534, 113888, 142360, 156596, 185068, 195745, 231335, 284720, 313192, 370136, 391490, 462670, 508937, 569440, 626384, 740272, 782980, 925340, 1017874, 1252768, 1480544, 1565960, 1850680, 2035748, 2544685, 3131920, 3701360, 4071496, 5089370, 6263840, 7402720, 8142992, 10178740, 16285984, 20357480, 40714960, 81429920]

約数ペア:

[(1, 81429920), (2, 40714960), (4, 20357480), (5, 16285984), (8, 10178740), (10, 8142992), (11, 7402720), (13, 6263840), (16, 5089370), (20, 4071496), (22, 3701360), (26, 3131920), (32, 2544685), (40, 2035748), (44, 1850680), (52, 1565960), (55, 1480544), (65, 1252768), (80, 1017874), (88, 925340), (104, 782980), (110, 740272), (130, 626384), (143, 569440), (160, 508937), (176, 462670), (208, 391490), (220, 370136), (260, 313192), (286, 284720), (352, 231335), (416, 195745), (440, 185068), (520, 156596), (572, 142360), (715, 113888), (880, 92534), (1040, 78298), (1144, 71180), (1430, 56944), (1760, 46267), (2080, 39149), (2288, 35590), (2860, 28472), (3559, 22880), (4576, 17795), (5720, 14236), (7118, 11440)]