15870985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 22014720

約数和(自身を除く): 6143735

約数列:

[1, 5, 13, 19, 65, 71, 95, 181, 247, 355, 905, 923, 1235, 1349, 2353, 3439, 4615, 6745, 11765, 12851, 17195, 17537, 44707, 64255, 87685, 167063, 223535, 244169, 835315, 1220845, 3174197, 15870985]

約数ペア:

[(1, 15870985), (5, 3174197), (13, 1220845), (19, 835315), (65, 244169), (71, 223535), (95, 167063), (181, 87685), (247, 64255), (355, 44707), (905, 17537), (923, 17195), (1235, 12851), (1349, 11765), (2353, 6745), (3439, 4615)]