20640384

素因数分解:

$2^7\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:103

約数の個数: 192

約数和(自身を含む): 66830400

約数和(自身を除く): 46190016

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 23, 24, 32, 36, 38, 41, 46, 48, 57, 64, 69, 72, 76, 82, 92, 96, 114, 123, 128, 138, 144, 152, 164, 171, 184, 192, 207, 228, 246, 276, 288, 304, 328, 342, 368, 369, 384, 414, 437, 456, 492, 552, 576, 608, 656, 684, 736, 738, 779, 828, 874, 912, 943, 984, 1104, 1152, 1216, 1311, 1312, 1368, 1472, 1476, 1558, 1656, 1748, 1824, 1886, 1968, 2208, 2337, 2432, 2622, 2624, 2736, 2829, 2944, 2952, 3116, 3312, 3496, 3648, 3772, 3933, 3936, 4416, 4674, 5244, 5248, 5472, 5658, 5904, 6232, 6624, 6992, 7011, 7296, 7544, 7866, 7872, 8487, 8832, 9348, 10488, 10944, 11316, 11808, 12464, 13248, 13984, 14022, 15088, 15732, 15744, 16974, 17917, 18696, 20976, 21888, 22632, 23616, 24928, 26496, 27968, 28044, 30176, 31464, 33948, 35834, 37392, 41952, 45264, 47232, 49856, 53751, 55936, 56088, 60352, 62928, 67896, 71668, 74784, 83904, 90528, 99712, 107502, 112176, 120704, 125856, 135792, 143336, 149568, 161253, 167808, 181056, 215004, 224352, 251712, 271584, 286672, 299136, 322506, 362112, 430008, 448704, 503424, 543168, 573344, 645012, 860016, 897408, 1086336, 1146688, 1290024, 1720032, 2293376, 2580048, 3440064, 5160096, 6880128, 10320192, 20640384]

約数ペア:

[(1, 20640384), (2, 10320192), (3, 6880128), (4, 5160096), (6, 3440064), (8, 2580048), (9, 2293376), (12, 1720032), (16, 1290024), (18, 1146688), (19, 1086336), (23, 897408), (24, 860016), (32, 645012), (36, 573344), (38, 543168), (41, 503424), (46, 448704), (48, 430008), (57, 362112), (64, 322506), (69, 299136), (72, 286672), (76, 271584), (82, 251712), (92, 224352), (96, 215004), (114, 181056), (123, 167808), (128, 161253), (138, 149568), (144, 143336), (152, 135792), (164, 125856), (171, 120704), (184, 112176), (192, 107502), (207, 99712), (228, 90528), (246, 83904), (276, 74784), (288, 71668), (304, 67896), (328, 62928), (342, 60352), (368, 56088), (369, 55936), (384, 53751), (414, 49856), (437, 47232), (456, 45264), (492, 41952), (552, 37392), (576, 35834), (608, 33948), (656, 31464), (684, 30176), (736, 28044), (738, 27968), (779, 26496), (828, 24928), (874, 23616), (912, 22632), (943, 21888), (984, 20976), (1104, 18696), (1152, 17917), (1216, 16974), (1311, 15744), (1312, 15732), (1368, 15088), (1472, 14022), (1476, 13984), (1558, 13248), (1656, 12464), (1748, 11808), (1824, 11316), (1886, 10944), (1968, 10488), (2208, 9348), (2337, 8832), (2432, 8487), (2622, 7872), (2624, 7866), (2736, 7544), (2829, 7296), (2944, 7011), (2952, 6992), (3116, 6624), (3312, 6232), (3496, 5904), (3648, 5658), (3772, 5472), (3933, 5248), (3936, 5244), (4416, 4674)]