64578748

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{20359}}^1$

素因数の和:20437

約数の個数: 24

約数和(自身を含む): 123707360

約数和(自身を除く): 59128612

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 20359, 40718, 81436, 264667, 529334, 1058668, 1241899, 2483798, 4967596, 16144687, 32289374, 64578748]

約数ペア:

[(1, 64578748), (2, 32289374), (4, 16144687), (13, 4967596), (26, 2483798), (52, 1241899), (61, 1058668), (122, 529334), (244, 264667), (793, 81436), (1586, 40718), (3172, 20359)]