31578512

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:220

約数の個数: 80

約数和(自身を含む): 73328640

約数和(自身を除く): 41750128

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 79, 83, 86, 112, 158, 166, 172, 301, 316, 332, 344, 553, 581, 602, 632, 664, 688, 1106, 1162, 1204, 1264, 1328, 2212, 2324, 2408, 3397, 3569, 4424, 4648, 4816, 6557, 6794, 7138, 8848, 9296, 13114, 13588, 14276, 23779, 24983, 26228, 27176, 28552, 45899, 47558, 49966, 52456, 54352, 57104, 91798, 95116, 99932, 104912, 183596, 190232, 199864, 281951, 367192, 380464, 399728, 563902, 734384, 1127804, 1973657, 2255608, 3947314, 4511216, 7894628, 15789256, 31578512]

約数ペア:

[(1, 31578512), (2, 15789256), (4, 7894628), (7, 4511216), (8, 3947314), (14, 2255608), (16, 1973657), (28, 1127804), (43, 734384), (56, 563902), (79, 399728), (83, 380464), (86, 367192), (112, 281951), (158, 199864), (166, 190232), (172, 183596), (301, 104912), (316, 99932), (332, 95116), (344, 91798), (553, 57104), (581, 54352), (602, 52456), (632, 49966), (664, 47558), (688, 45899), (1106, 28552), (1162, 27176), (1204, 26228), (1264, 24983), (1328, 23779), (2212, 14276), (2324, 13588), (2408, 13114), (3397, 9296), (3569, 8848), (4424, 7138), (4648, 6794), (4816, 6557)]