15981984

素因数分解:

$2^5\times 3^2\times {\mathrm{211}}^1\times {\mathrm{263}}^1$

素因数の和:490

約数の個数: 72

約数和(自身を含む): 45837792

約数和(自身を除く): 29855808

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 211, 263, 288, 422, 526, 633, 789, 844, 1052, 1266, 1578, 1688, 1899, 2104, 2367, 2532, 3156, 3376, 3798, 4208, 4734, 5064, 6312, 6752, 7596, 8416, 9468, 10128, 12624, 15192, 18936, 20256, 25248, 30384, 37872, 55493, 60768, 75744, 110986, 166479, 221972, 332958, 443944, 499437, 665916, 887888, 998874, 1331832, 1775776, 1997748, 2663664, 3995496, 5327328, 7990992, 15981984]

約数ペア:

[(1, 15981984), (2, 7990992), (3, 5327328), (4, 3995496), (6, 2663664), (8, 1997748), (9, 1775776), (12, 1331832), (16, 998874), (18, 887888), (24, 665916), (32, 499437), (36, 443944), (48, 332958), (72, 221972), (96, 166479), (144, 110986), (211, 75744), (263, 60768), (288, 55493), (422, 37872), (526, 30384), (633, 25248), (789, 20256), (844, 18936), (1052, 15192), (1266, 12624), (1578, 10128), (1688, 9468), (1899, 8416), (2104, 7596), (2367, 6752), (2532, 6312), (3156, 5064), (3376, 4734), (3798, 4208)]