770439820

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{1873}}^1$

素因数の和:2170

約数の個数: 48

約数和(自身を含む): 1641534048

約数和(自身を除く): 871094228

約数列:

[1, 2, 4, 5, 10, 20, 131, 157, 262, 314, 524, 628, 655, 785, 1310, 1570, 1873, 2620, 3140, 3746, 7492, 9365, 18730, 20567, 37460, 41134, 82268, 102835, 205670, 245363, 294061, 411340, 490726, 588122, 981452, 1176244, 1226815, 1470305, 2453630, 2940610, 4907260, 5881220, 38521991, 77043982, 154087964, 192609955, 385219910, 770439820]

約数ペア:

[(1, 770439820), (2, 385219910), (4, 192609955), (5, 154087964), (10, 77043982), (20, 38521991), (131, 5881220), (157, 4907260), (262, 2940610), (314, 2453630), (524, 1470305), (628, 1226815), (655, 1176244), (785, 981452), (1310, 588122), (1570, 490726), (1873, 411340), (2620, 294061), (3140, 245363), (3746, 205670), (7492, 102835), (9365, 82268), (18730, 41134), (20567, 37460)]