20565723904

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1\times {\mathrm{257}}^1$

素因数の和:622

約数の個数: 144

約数和(自身を含む): 45493602336

約数和(自身を除く): 24927878432

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 157, 176, 181, 256, 257, 314, 352, 362, 514, 628, 704, 724, 1028, 1256, 1408, 1448, 1727, 1991, 2056, 2512, 2816, 2827, 2896, 3454, 3982, 4112, 5024, 5654, 5792, 6908, 7964, 8224, 10048, 11308, 11584, 13816, 15928, 16448, 20096, 22616, 23168, 27632, 28417, 31856, 32896, 40192, 40349, 45232, 46336, 46517, 55264, 56834, 63712, 65792, 80698, 90464, 93034, 110528, 113668, 127424, 161396, 180928, 186068, 221056, 227336, 254848, 312587, 322792, 361856, 372136, 442112, 443839, 454672, 509696, 511687, 625174, 645584, 723712, 744272, 887678, 909344, 1023374, 1250348, 1291168, 1488544, 1775356, 1818688, 2046748, 2500696, 2582336, 2977088, 3550712, 3637376, 4093496, 5001392, 5164672, 5954176, 7101424, 7274752, 7303169, 8186992, 10002784, 10329344, 11908352, 14202848, 14606338, 16373984, 20005568, 28405696, 29212676, 32747968, 40011136, 56811392, 58425352, 65495936, 80022272, 80334859, 113622784, 116850704, 130991872, 160669718, 233701408, 321339436, 467402816, 642678872, 934805632, 1285357744, 1869611264, 2570715488, 5141430976, 10282861952, 20565723904]

約数ペア:

[(1, 20565723904), (2, 10282861952), (4, 5141430976), (8, 2570715488), (11, 1869611264), (16, 1285357744), (22, 934805632), (32, 642678872), (44, 467402816), (64, 321339436), (88, 233701408), (128, 160669718), (157, 130991872), (176, 116850704), (181, 113622784), (256, 80334859), (257, 80022272), (314, 65495936), (352, 58425352), (362, 56811392), (514, 40011136), (628, 32747968), (704, 29212676), (724, 28405696), (1028, 20005568), (1256, 16373984), (1408, 14606338), (1448, 14202848), (1727, 11908352), (1991, 10329344), (2056, 10002784), (2512, 8186992), (2816, 7303169), (2827, 7274752), (2896, 7101424), (3454, 5954176), (3982, 5164672), (4112, 5001392), (5024, 4093496), (5654, 3637376), (5792, 3550712), (6908, 2977088), (7964, 2582336), (8224, 2500696), (10048, 2046748), (11308, 1818688), (11584, 1775356), (13816, 1488544), (15928, 1291168), (16448, 1250348), (20096, 1023374), (22616, 909344), (23168, 887678), (27632, 744272), (28417, 723712), (31856, 645584), (32896, 625174), (40192, 511687), (40349, 509696), (45232, 454672), (46336, 443839), (46517, 442112), (55264, 372136), (56834, 361856), (63712, 322792), (65792, 312587), (80698, 254848), (90464, 227336), (93034, 221056), (110528, 186068), (113668, 180928), (127424, 161396)]