20514528

素因数分解:

$2^5\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:221

約数の個数: 144

約数和(自身を含む): 64471680

約数和(自身を除く): 43957152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 23, 24, 32, 36, 38, 46, 48, 57, 69, 72, 76, 92, 96, 114, 138, 144, 152, 163, 171, 184, 207, 228, 276, 288, 304, 326, 342, 368, 414, 437, 456, 489, 552, 608, 652, 684, 736, 828, 874, 912, 978, 1104, 1304, 1311, 1368, 1467, 1656, 1748, 1824, 1956, 2208, 2608, 2622, 2736, 2934, 3097, 3312, 3496, 3749, 3912, 3933, 5216, 5244, 5472, 5868, 6194, 6624, 6992, 7498, 7824, 7866, 9291, 10488, 11247, 11736, 12388, 13984, 14996, 15648, 15732, 18582, 20976, 22494, 23472, 24776, 27873, 29992, 31464, 33741, 37164, 41952, 44988, 46944, 49552, 55746, 59984, 62928, 67482, 71231, 74328, 89976, 99104, 111492, 119968, 125856, 134964, 142462, 148656, 179952, 213693, 222984, 269928, 284924, 297312, 359904, 427386, 445968, 539856, 569848, 641079, 854772, 891936, 1079712, 1139696, 1282158, 1709544, 2279392, 2564316, 3419088, 5128632, 6838176, 10257264, 20514528]

約数ペア:

[(1, 20514528), (2, 10257264), (3, 6838176), (4, 5128632), (6, 3419088), (8, 2564316), (9, 2279392), (12, 1709544), (16, 1282158), (18, 1139696), (19, 1079712), (23, 891936), (24, 854772), (32, 641079), (36, 569848), (38, 539856), (46, 445968), (48, 427386), (57, 359904), (69, 297312), (72, 284924), (76, 269928), (92, 222984), (96, 213693), (114, 179952), (138, 148656), (144, 142462), (152, 134964), (163, 125856), (171, 119968), (184, 111492), (207, 99104), (228, 89976), (276, 74328), (288, 71231), (304, 67482), (326, 62928), (342, 59984), (368, 55746), (414, 49552), (437, 46944), (456, 44988), (489, 41952), (552, 37164), (608, 33741), (652, 31464), (684, 29992), (736, 27873), (828, 24776), (874, 23472), (912, 22494), (978, 20976), (1104, 18582), (1304, 15732), (1311, 15648), (1368, 14996), (1467, 13984), (1656, 12388), (1748, 11736), (1824, 11247), (1956, 10488), (2208, 9291), (2608, 7866), (2622, 7824), (2736, 7498), (2934, 6992), (3097, 6624), (3312, 6194), (3496, 5868), (3749, 5472), (3912, 5244), (3933, 5216)]