28843880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55469}}^1$

素因数の和:55493

約数の個数: 32

約数和(自身を含む): 69892200

約数和(自身を除く): 41048320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55469, 110938, 221876, 277345, 443752, 554690, 721097, 1109380, 1442194, 2218760, 2884388, 3605485, 5768776, 7210970, 14421940, 28843880]

約数ペア:

[(1, 28843880), (2, 14421940), (4, 7210970), (5, 5768776), (8, 3605485), (10, 2884388), (13, 2218760), (20, 1442194), (26, 1109380), (40, 721097), (52, 554690), (65, 443752), (104, 277345), (130, 221876), (260, 110938), (520, 55469)]