20402928

素因数分解:

$2^4\times 3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1$

素因数の和:213

約数の個数: 200

約数和(自身を含む): 73099488

約数和(自身を除く): 52696560

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 27, 28, 36, 39, 42, 48, 52, 54, 56, 63, 72, 78, 81, 84, 91, 104, 108, 112, 117, 126, 144, 156, 162, 168, 173, 182, 189, 208, 216, 234, 252, 273, 312, 324, 336, 346, 351, 364, 378, 432, 468, 504, 519, 546, 567, 624, 648, 692, 702, 728, 756, 819, 936, 1008, 1038, 1053, 1092, 1134, 1211, 1296, 1384, 1404, 1456, 1512, 1557, 1638, 1872, 2076, 2106, 2184, 2249, 2268, 2422, 2457, 2768, 2808, 3024, 3114, 3276, 3633, 4152, 4212, 4368, 4498, 4536, 4671, 4844, 4914, 5616, 6228, 6552, 6747, 7266, 7371, 8304, 8424, 8996, 9072, 9342, 9688, 9828, 10899, 12456, 13104, 13494, 14013, 14532, 14742, 15743, 16848, 17992, 18684, 19376, 19656, 20241, 21798, 24912, 26988, 28026, 29064, 29484, 31486, 32697, 35984, 37368, 39312, 40482, 43596, 47229, 53976, 56052, 58128, 58968, 60723, 62972, 65394, 74736, 80964, 87192, 94458, 98091, 107952, 112104, 117936, 121446, 125944, 130788, 141687, 161928, 174384, 182169, 188916, 196182, 224208, 242892, 251888, 261576, 283374, 323856, 364338, 377832, 392364, 425061, 485784, 523152, 566748, 728676, 755664, 784728, 850122, 971568, 1133496, 1275183, 1457352, 1569456, 1700244, 2266992, 2550366, 2914704, 3400488, 5100732, 6800976, 10201464, 20402928]

約数ペア:

[(1, 20402928), (2, 10201464), (3, 6800976), (4, 5100732), (6, 3400488), (7, 2914704), (8, 2550366), (9, 2266992), (12, 1700244), (13, 1569456), (14, 1457352), (16, 1275183), (18, 1133496), (21, 971568), (24, 850122), (26, 784728), (27, 755664), (28, 728676), (36, 566748), (39, 523152), (42, 485784), (48, 425061), (52, 392364), (54, 377832), (56, 364338), (63, 323856), (72, 283374), (78, 261576), (81, 251888), (84, 242892), (91, 224208), (104, 196182), (108, 188916), (112, 182169), (117, 174384), (126, 161928), (144, 141687), (156, 130788), (162, 125944), (168, 121446), (173, 117936), (182, 112104), (189, 107952), (208, 98091), (216, 94458), (234, 87192), (252, 80964), (273, 74736), (312, 65394), (324, 62972), (336, 60723), (346, 58968), (351, 58128), (364, 56052), (378, 53976), (432, 47229), (468, 43596), (504, 40482), (519, 39312), (546, 37368), (567, 35984), (624, 32697), (648, 31486), (692, 29484), (702, 29064), (728, 28026), (756, 26988), (819, 24912), (936, 21798), (1008, 20241), (1038, 19656), (1053, 19376), (1092, 18684), (1134, 17992), (1211, 16848), (1296, 15743), (1384, 14742), (1404, 14532), (1456, 14013), (1512, 13494), (1557, 13104), (1638, 12456), (1872, 10899), (2076, 9828), (2106, 9688), (2184, 9342), (2249, 9072), (2268, 8996), (2422, 8424), (2457, 8304), (2768, 7371), (2808, 7266), (3024, 6747), (3114, 6552), (3276, 6228), (3633, 5616), (4152, 4914), (4212, 4844), (4368, 4671), (4498, 4536)]