647706784

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{389}}^1\times {\mathrm{853}}^1$

素因数の和:1313

約数の個数: 48

約数和(自身を含む): 1300932360

約数和(自身を除く): 653225576

約数列:

[1, 2, 4, 8, 16, 32, 61, 122, 244, 389, 488, 778, 853, 976, 1556, 1706, 1952, 3112, 3412, 6224, 6824, 12448, 13648, 23729, 27296, 47458, 52033, 94916, 104066, 189832, 208132, 331817, 379664, 416264, 663634, 759328, 832528, 1327268, 1665056, 2654536, 5309072, 10618144, 20240837, 40481674, 80963348, 161926696, 323853392, 647706784]

約数ペア:

[(1, 647706784), (2, 323853392), (4, 161926696), (8, 80963348), (16, 40481674), (32, 20240837), (61, 10618144), (122, 5309072), (244, 2654536), (389, 1665056), (488, 1327268), (778, 832528), (853, 759328), (976, 663634), (1556, 416264), (1706, 379664), (1952, 331817), (3112, 208132), (3412, 189832), (6224, 104066), (6824, 94916), (12448, 52033), (13648, 47458), (23729, 27296)]