20858976

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:153

約数の個数: 144

約数和(自身を含む): 64157184

約数和(自身を除く): 43298208

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 47, 48, 67, 69, 72, 92, 94, 96, 134, 138, 141, 144, 184, 188, 201, 207, 268, 276, 282, 288, 368, 376, 402, 414, 423, 536, 552, 564, 603, 736, 752, 804, 828, 846, 1072, 1081, 1104, 1128, 1206, 1504, 1541, 1608, 1656, 1692, 2144, 2162, 2208, 2256, 2412, 3082, 3149, 3216, 3243, 3312, 3384, 4324, 4512, 4623, 4824, 6164, 6298, 6432, 6486, 6624, 6768, 8648, 9246, 9447, 9648, 9729, 12328, 12596, 12972, 13536, 13869, 17296, 18492, 18894, 19296, 19458, 24656, 25192, 25944, 27738, 28341, 34592, 36984, 37788, 38916, 49312, 50384, 51888, 55476, 56682, 72427, 73968, 75576, 77832, 100768, 103776, 110952, 113364, 144854, 147936, 151152, 155664, 217281, 221904, 226728, 289708, 302304, 311328, 434562, 443808, 453456, 579416, 651843, 869124, 906912, 1158832, 1303686, 1738248, 2317664, 2607372, 3476496, 5214744, 6952992, 10429488, 20858976]

約数ペア:

[(1, 20858976), (2, 10429488), (3, 6952992), (4, 5214744), (6, 3476496), (8, 2607372), (9, 2317664), (12, 1738248), (16, 1303686), (18, 1158832), (23, 906912), (24, 869124), (32, 651843), (36, 579416), (46, 453456), (47, 443808), (48, 434562), (67, 311328), (69, 302304), (72, 289708), (92, 226728), (94, 221904), (96, 217281), (134, 155664), (138, 151152), (141, 147936), (144, 144854), (184, 113364), (188, 110952), (201, 103776), (207, 100768), (268, 77832), (276, 75576), (282, 73968), (288, 72427), (368, 56682), (376, 55476), (402, 51888), (414, 50384), (423, 49312), (536, 38916), (552, 37788), (564, 36984), (603, 34592), (736, 28341), (752, 27738), (804, 25944), (828, 25192), (846, 24656), (1072, 19458), (1081, 19296), (1104, 18894), (1128, 18492), (1206, 17296), (1504, 13869), (1541, 13536), (1608, 12972), (1656, 12596), (1692, 12328), (2144, 9729), (2162, 9648), (2208, 9447), (2256, 9246), (2412, 8648), (3082, 6768), (3149, 6624), (3216, 6486), (3243, 6432), (3312, 6298), (3384, 6164), (4324, 4824), (4512, 4623)]