64639985

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 83825280

約数和(自身を除く): 19185295

約数列:

[1, 5, 29, 41, 83, 131, 145, 205, 415, 655, 1189, 2407, 3403, 3799, 5371, 5945, 10873, 12035, 17015, 18995, 26855, 54365, 98687, 155759, 315317, 445793, 493435, 778795, 1576585, 2228965, 12927997, 64639985]

約数ペア:

[(1, 64639985), (5, 12927997), (29, 2228965), (41, 1576585), (83, 778795), (131, 493435), (145, 445793), (205, 315317), (415, 155759), (655, 98687), (1189, 54365), (2407, 26855), (3403, 18995), (3799, 17015), (5371, 12035), (5945, 10873)]