20245888215

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{490631}}^1$

素因数の和:490780

約数の個数: 48

約数和(自身を含む): 40412376576

約数和(自身を除く): 20166488361

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 131, 315, 393, 655, 917, 1179, 1965, 2751, 4585, 5895, 8253, 13755, 41265, 490631, 1471893, 2453155, 3434417, 4415679, 7359465, 10303251, 17172085, 22078395, 30909753, 51516255, 64272661, 154548765, 192817983, 321363305, 449908627, 578453949, 964089915, 1349725881, 2249543135, 2892269745, 4049177643, 6748629405, 20245888215]

約数ペア:

[(1, 20245888215), (3, 6748629405), (5, 4049177643), (7, 2892269745), (9, 2249543135), (15, 1349725881), (21, 964089915), (35, 578453949), (45, 449908627), (63, 321363305), (105, 192817983), (131, 154548765), (315, 64272661), (393, 51516255), (655, 30909753), (917, 22078395), (1179, 17172085), (1965, 10303251), (2751, 7359465), (4585, 4415679), (5895, 3434417), (8253, 2453155), (13755, 1471893), (41265, 490631)]