28944890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{4201}}^1$

素因数の和:4274

約数の個数: 32

約数和(自身を含む): 57180816

約数和(自身を除く): 28235926

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 3445, 4201, 6890, 8402, 21005, 42010, 54613, 109226, 222653, 273065, 445306, 546130, 1113265, 2226530, 2894489, 5788978, 14472445, 28944890]

約数ペア:

[(1, 28944890), (2, 14472445), (5, 5788978), (10, 2894489), (13, 2226530), (26, 1113265), (53, 546130), (65, 445306), (106, 273065), (130, 222653), (265, 109226), (530, 54613), (689, 42010), (1378, 21005), (3445, 8402), (4201, 6890)]