64443730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{15991}}^1$

素因数の和:16042

約数の個数: 32

約数和(自身を含む): 128959488

約数和(自身を除く): 64515758

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 15991, 31982, 79955, 159910, 207883, 415766, 495721, 991442, 1039415, 2078830, 2478605, 4957210, 6444373, 12888746, 32221865, 64443730]

約数ペア:

[(1, 64443730), (2, 32221865), (5, 12888746), (10, 6444373), (13, 4957210), (26, 2478605), (31, 2078830), (62, 1039415), (65, 991442), (130, 495721), (155, 415766), (310, 207883), (403, 159910), (806, 79955), (2015, 31982), (4030, 15991)]