28605465940

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1\times {\mathrm{45779}}^1$

素因数の和:46144

約数の個数: 48

約数和(自身を含む): 60759216000

約数和(自身を除く): 32153750060

約数列:

[1, 2, 4, 5, 10, 20, 157, 199, 314, 398, 628, 785, 796, 995, 1570, 1990, 3140, 3980, 31243, 45779, 62486, 91558, 124972, 156215, 183116, 228895, 312430, 457790, 624860, 915580, 7187303, 9110021, 14374606, 18220042, 28749212, 35936515, 36440084, 45550105, 71873030, 91100210, 143746060, 182200420, 1430273297, 2860546594, 5721093188, 7151366485, 14302732970, 28605465940]

約数ペア:

[(1, 28605465940), (2, 14302732970), (4, 7151366485), (5, 5721093188), (10, 2860546594), (20, 1430273297), (157, 182200420), (199, 143746060), (314, 91100210), (398, 71873030), (628, 45550105), (785, 36440084), (796, 35936515), (995, 28749212), (1570, 18220042), (1990, 14374606), (3140, 9110021), (3980, 7187303), (31243, 915580), (45779, 624860), (62486, 457790), (91558, 312430), (124972, 228895), (156215, 183116)]