20565421520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{111623}}^1$

素因数の和:111697

約数の個数: 120

約数和(自身を含む): 56805007104

約数和(自身を除く): 36239585584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 49, 56, 70, 80, 94, 98, 112, 140, 188, 196, 235, 245, 280, 329, 376, 392, 470, 490, 560, 658, 752, 784, 940, 980, 1316, 1645, 1880, 1960, 2303, 2632, 3290, 3760, 3920, 4606, 5264, 6580, 9212, 11515, 13160, 18424, 23030, 26320, 36848, 46060, 92120, 111623, 184240, 223246, 446492, 558115, 781361, 892984, 1116230, 1562722, 1785968, 2232460, 3125444, 3906805, 4464920, 5246281, 5469527, 6250888, 7813610, 8929840, 10492562, 10939054, 12501776, 15627220, 20985124, 21878108, 26231405, 27347635, 31254440, 36723967, 41970248, 43756216, 52462810, 54695270, 62508880, 73447934, 83940496, 87512432, 104925620, 109390540, 146895868, 183619835, 209851240, 218781080, 257067769, 293791736, 367239670, 419702480, 437562160, 514135538, 587583472, 734479340, 1028271076, 1285338845, 1468958680, 2056542152, 2570677690, 2937917360, 4113084304, 5141355380, 10282710760, 20565421520]

約数ペア:

[(1, 20565421520), (2, 10282710760), (4, 5141355380), (5, 4113084304), (7, 2937917360), (8, 2570677690), (10, 2056542152), (14, 1468958680), (16, 1285338845), (20, 1028271076), (28, 734479340), (35, 587583472), (40, 514135538), (47, 437562160), (49, 419702480), (56, 367239670), (70, 293791736), (80, 257067769), (94, 218781080), (98, 209851240), (112, 183619835), (140, 146895868), (188, 109390540), (196, 104925620), (235, 87512432), (245, 83940496), (280, 73447934), (329, 62508880), (376, 54695270), (392, 52462810), (470, 43756216), (490, 41970248), (560, 36723967), (658, 31254440), (752, 27347635), (784, 26231405), (940, 21878108), (980, 20985124), (1316, 15627220), (1645, 12501776), (1880, 10939054), (1960, 10492562), (2303, 8929840), (2632, 7813610), (3290, 6250888), (3760, 5469527), (3920, 5246281), (4606, 4464920), (5264, 3906805), (6580, 3125444), (9212, 2232460), (11515, 1785968), (13160, 1562722), (18424, 1116230), (23030, 892984), (26320, 781361), (36848, 558115), (46060, 446492), (92120, 223246), (111623, 184240)]