1991569455

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{4783}}^1$

素因数の和:5300

約数の個数: 48

約数和(自身を含む): 3641963520

約数和(自身を除く): 1650394065

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 487, 855, 1461, 2435, 4383, 4783, 7305, 9253, 14349, 21915, 23915, 27759, 43047, 46265, 71745, 83277, 90877, 138795, 215235, 272631, 416385, 454385, 817893, 1363155, 2329321, 4089465, 6987963, 11646605, 20963889, 34939815, 44257099, 104819445, 132771297, 221285495, 398313891, 663856485, 1991569455]

約数ペア:

[(1, 1991569455), (3, 663856485), (5, 398313891), (9, 221285495), (15, 132771297), (19, 104819445), (45, 44257099), (57, 34939815), (95, 20963889), (171, 11646605), (285, 6987963), (487, 4089465), (855, 2329321), (1461, 1363155), (2435, 817893), (4383, 454385), (4783, 416385), (7305, 272631), (9253, 215235), (14349, 138795), (21915, 90877), (23915, 83277), (27759, 71745), (43047, 46265)]