19631872

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{347}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 44812656

約数和(自身を除く): 25180784

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 128, 136, 208, 221, 256, 272, 347, 416, 442, 544, 694, 832, 884, 1088, 1388, 1664, 1768, 2176, 2776, 3328, 3536, 4352, 4511, 5552, 5899, 7072, 9022, 11104, 11798, 14144, 18044, 22208, 23596, 28288, 36088, 44416, 47192, 56576, 72176, 76687, 88832, 94384, 144352, 153374, 188768, 288704, 306748, 377536, 577408, 613496, 755072, 1154816, 1226992, 1510144, 2453984, 4907968, 9815936, 19631872]

約数ペア:

[(1, 19631872), (2, 9815936), (4, 4907968), (8, 2453984), (13, 1510144), (16, 1226992), (17, 1154816), (26, 755072), (32, 613496), (34, 577408), (52, 377536), (64, 306748), (68, 288704), (104, 188768), (128, 153374), (136, 144352), (208, 94384), (221, 88832), (256, 76687), (272, 72176), (347, 56576), (416, 47192), (442, 44416), (544, 36088), (694, 28288), (832, 23596), (884, 22208), (1088, 18044), (1388, 14144), (1664, 11798), (1768, 11104), (2176, 9022), (2776, 7072), (3328, 5899), (3536, 5552), (4352, 4511)]