18385768

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 38808000

約数和(自身を除く): 20422232

約数列:

[1, 2, 4, 8, 19, 29, 38, 43, 58, 76, 86, 97, 116, 152, 172, 194, 232, 344, 388, 551, 776, 817, 1102, 1247, 1634, 1843, 2204, 2494, 2813, 3268, 3686, 4171, 4408, 4988, 5626, 6536, 7372, 8342, 9976, 11252, 14744, 16684, 22504, 23693, 33368, 47386, 53447, 79249, 94772, 106894, 120959, 158498, 189544, 213788, 241918, 316996, 427576, 483836, 633992, 967672, 2298221, 4596442, 9192884, 18385768]

約数ペア:

[(1, 18385768), (2, 9192884), (4, 4596442), (8, 2298221), (19, 967672), (29, 633992), (38, 483836), (43, 427576), (58, 316996), (76, 241918), (86, 213788), (97, 189544), (116, 158498), (152, 120959), (172, 106894), (194, 94772), (232, 79249), (344, 53447), (388, 47386), (551, 33368), (776, 23693), (817, 22504), (1102, 16684), (1247, 14744), (1634, 11252), (1843, 9976), (2204, 8342), (2494, 7372), (2813, 6536), (3268, 5626), (3686, 4988), (4171, 4408)]