89689990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{727}}^1$

素因数の和:833

約数の個数: 48

約数和(自身を含む): 177454368

約数和(自身を除く): 87764378

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 169, 338, 365, 727, 730, 845, 949, 1454, 1690, 1898, 3635, 4745, 7270, 9451, 9490, 12337, 18902, 24674, 47255, 53071, 61685, 94510, 106142, 122863, 123370, 245726, 265355, 530710, 614315, 689923, 1228630, 1379846, 3449615, 6899230, 8968999, 17937998, 44844995, 89689990]

約数ペア:

[(1, 89689990), (2, 44844995), (5, 17937998), (10, 8968999), (13, 6899230), (26, 3449615), (65, 1379846), (73, 1228630), (130, 689923), (146, 614315), (169, 530710), (338, 265355), (365, 245726), (727, 123370), (730, 122863), (845, 106142), (949, 94510), (1454, 61685), (1690, 53071), (1898, 47255), (3635, 24674), (4745, 18902), (7270, 12337), (9451, 9490)]