28880722

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{181}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 52422552

約数和(自身を除く): 23541830

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 181, 221, 247, 323, 361, 362, 442, 494, 646, 722, 2353, 3077, 3439, 4199, 4693, 4706, 6137, 6154, 6878, 8398, 9386, 12274, 40001, 44707, 58463, 65341, 79781, 80002, 89414, 116926, 130682, 159562, 760019, 849433, 1110797, 1520038, 1698866, 2221594, 14440361, 28880722]

約数ペア:

[(1, 28880722), (2, 14440361), (13, 2221594), (17, 1698866), (19, 1520038), (26, 1110797), (34, 849433), (38, 760019), (181, 159562), (221, 130682), (247, 116926), (323, 89414), (361, 80002), (362, 79781), (442, 65341), (494, 58463), (646, 44707), (722, 40001), (2353, 12274), (3077, 9386), (3439, 8398), (4199, 6878), (4693, 6154), (4706, 6137)]