64239820

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{5189}}^1$

素因数の和:5817

約数の個数: 24

約数和(自身を含む): 135147600

約数和(自身を除く): 70907780

約数列:

[1, 2, 4, 5, 10, 20, 619, 1238, 2476, 3095, 5189, 6190, 10378, 12380, 20756, 25945, 51890, 103780, 3211991, 6423982, 12847964, 16059955, 32119910, 64239820]

約数ペア:

[(1, 64239820), (2, 32119910), (4, 16059955), (5, 12847964), (10, 6423982), (20, 3211991), (619, 103780), (1238, 51890), (2476, 25945), (3095, 20756), (5189, 12380), (6190, 10378)]