20302790

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2153}}^1$

素因数の和:2224

約数の個数: 32

約数和(自身を含む): 39082176

約数和(自身を除く): 18779386

約数列:

[1, 2, 5, 10, 23, 41, 46, 82, 115, 205, 230, 410, 943, 1886, 2153, 4306, 4715, 9430, 10765, 21530, 49519, 88273, 99038, 176546, 247595, 441365, 495190, 882730, 2030279, 4060558, 10151395, 20302790]

約数ペア:

[(1, 20302790), (2, 10151395), (5, 4060558), (10, 2030279), (23, 882730), (41, 495190), (46, 441365), (82, 247595), (115, 176546), (205, 99038), (230, 88273), (410, 49519), (943, 21530), (1886, 10765), (2153, 9430), (4306, 4715)]