245283880

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{9277}}^1$

素因数の和:9949

約数の個数: 32

約数和(自身を含む): 552783240

約数和(自身を除く): 307499360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 5288, 6610, 9277, 13220, 18554, 26440, 37108, 46385, 74216, 92770, 185540, 371080, 6132097, 12264194, 24528388, 30660485, 49056776, 61320970, 122641940, 245283880]

約数ペア:

[(1, 245283880), (2, 122641940), (4, 61320970), (5, 49056776), (8, 30660485), (10, 24528388), (20, 12264194), (40, 6132097), (661, 371080), (1322, 185540), (2644, 92770), (3305, 74216), (5288, 46385), (6610, 37108), (9277, 26440), (13220, 18554)]