19980525

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{15671}}^1$

素因数の和:15701

約数の個数: 24

約数和(自身を含む): 34979904

約数和(自身を除く): 14999379

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 15671, 47013, 78355, 235065, 266407, 391775, 799221, 1175325, 1332035, 3996105, 6660175, 19980525]

約数ペア:

[(1, 19980525), (3, 6660175), (5, 3996105), (15, 1332035), (17, 1175325), (25, 799221), (51, 391775), (75, 266407), (85, 235065), (255, 78355), (425, 47013), (1275, 15671)]