78444640

素因数分解:

$2^5\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1597}}^1$

素因数の和:1919

約数の個数: 48

約数和(自身を含む): 186045552

約数和(自身を除く): 107600912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 307, 614, 1228, 1535, 1597, 2456, 3070, 3194, 4912, 6140, 6388, 7985, 9824, 12280, 12776, 15970, 24560, 25552, 31940, 49120, 51104, 63880, 127760, 255520, 490279, 980558, 1961116, 2451395, 3922232, 4902790, 7844464, 9805580, 15688928, 19611160, 39222320, 78444640]

約数ペア:

[(1, 78444640), (2, 39222320), (4, 19611160), (5, 15688928), (8, 9805580), (10, 7844464), (16, 4902790), (20, 3922232), (32, 2451395), (40, 1961116), (80, 980558), (160, 490279), (307, 255520), (614, 127760), (1228, 63880), (1535, 51104), (1597, 49120), (2456, 31940), (3070, 25552), (3194, 24560), (4912, 15970), (6140, 12776), (6388, 12280), (7985, 9824)]