20165819145

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1549}}^1\times {\mathrm{27997}}^1$

素因数の和:29585

約数の個数: 32

約数和(自身を含む): 33328819200

約数和(自身を除く): 13163000055

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 1549, 4647, 7745, 23235, 27997, 48019, 83991, 139985, 144057, 240095, 419955, 720285, 867907, 2603721, 4339535, 13018605, 43367353, 130102059, 216836765, 650510295, 1344387943, 4033163829, 6721939715, 20165819145]

約数ペア:

[(1, 20165819145), (3, 6721939715), (5, 4033163829), (15, 1344387943), (31, 650510295), (93, 216836765), (155, 130102059), (465, 43367353), (1549, 13018605), (4647, 4339535), (7745, 2603721), (23235, 867907), (27997, 720285), (48019, 419955), (83991, 240095), (139985, 144057)]