205804940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{3727}}^1$

素因数の和:3998

約数の個数: 48

約数和(自身を含む): 473485824

約数和(自身を除く): 267680884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 251, 502, 1004, 1255, 2510, 2761, 3727, 5020, 5522, 7454, 11044, 13805, 14908, 18635, 27610, 37270, 40997, 55220, 74540, 81994, 163988, 204985, 409970, 819940, 935477, 1870954, 3741908, 4677385, 9354770, 10290247, 18709540, 20580494, 41160988, 51451235, 102902470, 205804940]

約数ペア:

[(1, 205804940), (2, 102902470), (4, 51451235), (5, 41160988), (10, 20580494), (11, 18709540), (20, 10290247), (22, 9354770), (44, 4677385), (55, 3741908), (110, 1870954), (220, 935477), (251, 819940), (502, 409970), (1004, 204985), (1255, 163988), (2510, 81994), (2761, 74540), (3727, 55220), (5020, 40997), (5522, 37270), (7454, 27610), (11044, 18635), (13805, 14908)]