18717984

素因数分解:

$2^5\times 3^2\times {\mathrm{103}}^1\times {\mathrm{631}}^1$

素因数の和:750

約数の個数: 72

約数和(自身を含む): 53831232

約数和(自身を除く): 35113248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 103, 144, 206, 288, 309, 412, 618, 631, 824, 927, 1236, 1262, 1648, 1854, 1893, 2472, 2524, 3296, 3708, 3786, 4944, 5048, 5679, 7416, 7572, 9888, 10096, 11358, 14832, 15144, 20192, 22716, 29664, 30288, 45432, 60576, 64993, 90864, 129986, 181728, 194979, 259972, 389958, 519944, 584937, 779916, 1039888, 1169874, 1559832, 2079776, 2339748, 3119664, 4679496, 6239328, 9358992, 18717984]

約数ペア:

[(1, 18717984), (2, 9358992), (3, 6239328), (4, 4679496), (6, 3119664), (8, 2339748), (9, 2079776), (12, 1559832), (16, 1169874), (18, 1039888), (24, 779916), (32, 584937), (36, 519944), (48, 389958), (72, 259972), (96, 194979), (103, 181728), (144, 129986), (206, 90864), (288, 64993), (309, 60576), (412, 45432), (618, 30288), (631, 29664), (824, 22716), (927, 20192), (1236, 15144), (1262, 14832), (1648, 11358), (1854, 10096), (1893, 9888), (2472, 7572), (2524, 7416), (3296, 5679), (3708, 5048), (3786, 4944)]