18381984

素因数分解:

$2^5\times 3^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:190

約数の個数: 96

約数和(自身を含む): 50871744

約数和(自身を除く): 32489760

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 61, 73, 86, 96, 122, 129, 146, 172, 183, 219, 244, 258, 292, 344, 366, 438, 488, 516, 584, 688, 732, 876, 976, 1032, 1168, 1376, 1464, 1752, 1952, 2064, 2336, 2623, 2928, 3139, 3504, 4128, 4453, 5246, 5856, 6278, 7008, 7869, 8906, 9417, 10492, 12556, 13359, 15738, 17812, 18834, 20984, 25112, 26718, 31476, 35624, 37668, 41968, 50224, 53436, 62952, 71248, 75336, 83936, 100448, 106872, 125904, 142496, 150672, 191479, 213744, 251808, 301344, 382958, 427488, 574437, 765916, 1148874, 1531832, 2297748, 3063664, 4595496, 6127328, 9190992, 18381984]

約数ペア:

[(1, 18381984), (2, 9190992), (3, 6127328), (4, 4595496), (6, 3063664), (8, 2297748), (12, 1531832), (16, 1148874), (24, 765916), (32, 574437), (43, 427488), (48, 382958), (61, 301344), (73, 251808), (86, 213744), (96, 191479), (122, 150672), (129, 142496), (146, 125904), (172, 106872), (183, 100448), (219, 83936), (244, 75336), (258, 71248), (292, 62952), (344, 53436), (366, 50224), (438, 41968), (488, 37668), (516, 35624), (584, 31476), (688, 26718), (732, 25112), (876, 20984), (976, 18834), (1032, 17812), (1168, 15738), (1376, 13359), (1464, 12556), (1752, 10492), (1952, 9417), (2064, 8906), (2336, 7869), (2623, 7008), (2928, 6278), (3139, 5856), (3504, 5246), (4128, 4453)]