19680945

素因数分解:

$3^1\times 5^1\times {\mathrm{317}}^1\times {\mathrm{4139}}^1$

素因数の和:4464

約数の個数: 16

約数和(自身を含む): 31596480

約数和(自身を除く): 11915535

約数列:

[1, 3, 5, 15, 317, 951, 1585, 4139, 4755, 12417, 20695, 62085, 1312063, 3936189, 6560315, 19680945]

約数ペア:

[(1, 19680945), (3, 6560315), (5, 3936189), (15, 1312063), (317, 62085), (951, 20695), (1585, 12417), (4139, 4755)]