20218746976

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{2213}}^1\times {\mathrm{5387}}^1$

素因数の和:7663

約数の個数: 48

約数和(自身を含む): 40582566864

約数和(自身を除く): 20363819888

約数列:

[1, 2, 4, 8, 16, 32, 53, 106, 212, 424, 848, 1696, 2213, 4426, 5387, 8852, 10774, 17704, 21548, 35408, 43096, 70816, 86192, 117289, 172384, 234578, 285511, 469156, 571022, 938312, 1142044, 1876624, 2284088, 3753248, 4568176, 9136352, 11921431, 23842862, 47685724, 95371448, 190742896, 381485792, 631835843, 1263671686, 2527343372, 5054686744, 10109373488, 20218746976]

約数ペア:

[(1, 20218746976), (2, 10109373488), (4, 5054686744), (8, 2527343372), (16, 1263671686), (32, 631835843), (53, 381485792), (106, 190742896), (212, 95371448), (424, 47685724), (848, 23842862), (1696, 11921431), (2213, 9136352), (4426, 4568176), (5387, 3753248), (8852, 2284088), (10774, 1876624), (17704, 1142044), (21548, 938312), (35408, 571022), (43096, 469156), (70816, 285511), (86192, 234578), (117289, 172384)]