80789710

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 159667200

約数和(自身を除く): 78877490

約数列:

[1, 2, 5, 10, 19, 38, 47, 83, 94, 95, 109, 166, 190, 218, 235, 415, 470, 545, 830, 893, 1090, 1577, 1786, 2071, 3154, 3901, 4142, 4465, 5123, 7802, 7885, 8930, 9047, 10246, 10355, 15770, 18094, 19505, 20710, 25615, 39010, 45235, 51230, 74119, 90470, 97337, 148238, 171893, 194674, 343786, 370595, 425209, 486685, 741190, 850418, 859465, 973370, 1718930, 2126045, 4252090, 8078971, 16157942, 40394855, 80789710]

約数ペア:

[(1, 80789710), (2, 40394855), (5, 16157942), (10, 8078971), (19, 4252090), (38, 2126045), (47, 1718930), (83, 973370), (94, 859465), (95, 850418), (109, 741190), (166, 486685), (190, 425209), (218, 370595), (235, 343786), (415, 194674), (470, 171893), (545, 148238), (830, 97337), (893, 90470), (1090, 74119), (1577, 51230), (1786, 45235), (2071, 39010), (3154, 25615), (3901, 20710), (4142, 19505), (4465, 18094), (5123, 15770), (7802, 10355), (7885, 10246), (8930, 9047)]