20358754

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:155

約数の個数: 48

約数和(自身を含む): 35838720

約数和(自身を除く): 15479966

約数列:

[1, 2, 13, 26, 29, 31, 58, 62, 67, 134, 169, 338, 377, 403, 754, 806, 871, 899, 1742, 1798, 1943, 2077, 3886, 4154, 4901, 5239, 9802, 10478, 11323, 11687, 22646, 23374, 25259, 27001, 50518, 54002, 60233, 120466, 151931, 303862, 328367, 351013, 656734, 702026, 783029, 1566058, 10179377, 20358754]

約数ペア:

[(1, 20358754), (2, 10179377), (13, 1566058), (26, 783029), (29, 702026), (31, 656734), (58, 351013), (62, 328367), (67, 303862), (134, 151931), (169, 120466), (338, 60233), (377, 54002), (403, 50518), (754, 27001), (806, 25259), (871, 23374), (899, 22646), (1742, 11687), (1798, 11323), (1943, 10478), (2077, 9802), (3886, 5239), (4154, 4901)]