638509664

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:217

約数の個数: 144

約数和(自身を含む): 1481675328

約数和(自身を除く): 843165664

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 47, 52, 68, 94, 104, 113, 136, 188, 208, 221, 226, 272, 289, 376, 416, 442, 452, 544, 578, 611, 752, 799, 884, 904, 1156, 1222, 1469, 1504, 1598, 1768, 1808, 1921, 2312, 2444, 2938, 3196, 3536, 3616, 3757, 3842, 4624, 4888, 5311, 5876, 6392, 7072, 7514, 7684, 9248, 9776, 10387, 10622, 11752, 12784, 13583, 15028, 15368, 19552, 20774, 21244, 23504, 24973, 25568, 27166, 30056, 30736, 32657, 41548, 42488, 47008, 49946, 54332, 60112, 61472, 65314, 69043, 83096, 84976, 90287, 99892, 108664, 120224, 130628, 138086, 166192, 169952, 176579, 180574, 199784, 217328, 261256, 276172, 332384, 353158, 361148, 399568, 424541, 434656, 522512, 552344, 706316, 722296, 799136, 849082, 1045024, 1104688, 1173731, 1412632, 1444592, 1534879, 1698164, 2209376, 2347462, 2825264, 2889184, 3069758, 3396328, 4694924, 5650528, 6139516, 6792656, 9389848, 12279032, 13585312, 18779696, 19953427, 24558064, 37559392, 39906854, 49116128, 79813708, 159627416, 319254832, 638509664]

約数ペア:

[(1, 638509664), (2, 319254832), (4, 159627416), (8, 79813708), (13, 49116128), (16, 39906854), (17, 37559392), (26, 24558064), (32, 19953427), (34, 18779696), (47, 13585312), (52, 12279032), (68, 9389848), (94, 6792656), (104, 6139516), (113, 5650528), (136, 4694924), (188, 3396328), (208, 3069758), (221, 2889184), (226, 2825264), (272, 2347462), (289, 2209376), (376, 1698164), (416, 1534879), (442, 1444592), (452, 1412632), (544, 1173731), (578, 1104688), (611, 1045024), (752, 849082), (799, 799136), (884, 722296), (904, 706316), (1156, 552344), (1222, 522512), (1469, 434656), (1504, 424541), (1598, 399568), (1768, 361148), (1808, 353158), (1921, 332384), (2312, 276172), (2444, 261256), (2938, 217328), (3196, 199784), (3536, 180574), (3616, 176579), (3757, 169952), (3842, 166192), (4624, 138086), (4888, 130628), (5311, 120224), (5876, 108664), (6392, 99892), (7072, 90287), (7514, 84976), (7684, 83096), (9248, 69043), (9776, 65314), (10387, 61472), (10622, 60112), (11752, 54332), (12784, 49946), (13583, 47008), (15028, 42488), (15368, 41548), (19552, 32657), (20774, 30736), (21244, 30056), (23504, 27166), (24973, 25568)]