20778868660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{541}}^1\times {\mathrm{174583}}^1$

素因数の和:175144

約数の個数: 48

約数和(自身を含む): 47690762112

約数和(自身を除く): 26911893452

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 541, 1082, 2164, 2705, 5410, 5951, 10820, 11902, 23804, 29755, 59510, 119020, 174583, 349166, 698332, 872915, 1745830, 1920413, 3491660, 3840826, 7681652, 9602065, 19204130, 38408260, 94449403, 188898806, 377797612, 472247015, 944494030, 1038943433, 1888988060, 2077886866, 4155773732, 5194717165, 10389434330, 20778868660]

約数ペア:

[(1, 20778868660), (2, 10389434330), (4, 5194717165), (5, 4155773732), (10, 2077886866), (11, 1888988060), (20, 1038943433), (22, 944494030), (44, 472247015), (55, 377797612), (110, 188898806), (220, 94449403), (541, 38408260), (1082, 19204130), (2164, 9602065), (2705, 7681652), (5410, 3840826), (5951, 3491660), (10820, 1920413), (11902, 1745830), (23804, 872915), (29755, 698332), (59510, 349166), (119020, 174583)]