81124780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{1303}}^1$

素因数の和:1606

約数の個数: 48

約数和(自身を含む): 186649344

約数和(自身を除く): 105524564

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 283, 566, 1132, 1303, 1415, 2606, 2830, 3113, 5212, 5660, 6226, 6515, 12452, 13030, 14333, 15565, 26060, 28666, 31130, 57332, 62260, 71665, 143330, 286660, 368749, 737498, 1474996, 1843745, 3687490, 4056239, 7374980, 8112478, 16224956, 20281195, 40562390, 81124780]

約数ペア:

[(1, 81124780), (2, 40562390), (4, 20281195), (5, 16224956), (10, 8112478), (11, 7374980), (20, 4056239), (22, 3687490), (44, 1843745), (55, 1474996), (110, 737498), (220, 368749), (283, 286660), (566, 143330), (1132, 71665), (1303, 62260), (1415, 57332), (2606, 31130), (2830, 28666), (3113, 26060), (5212, 15565), (5660, 14333), (6226, 13030), (6515, 12452)]