8019880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1657}}^1$

素因数の和:1690

約数の個数: 48

約数和(自身を含む): 19846260

約数和(自身を除く): 11826380

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 1657, 2420, 3314, 4840, 6628, 8285, 13256, 16570, 18227, 33140, 36454, 66280, 72908, 91135, 145816, 182270, 200497, 364540, 400994, 729080, 801988, 1002485, 1603976, 2004970, 4009940, 8019880]

約数ペア:

[(1, 8019880), (2, 4009940), (4, 2004970), (5, 1603976), (8, 1002485), (10, 801988), (11, 729080), (20, 400994), (22, 364540), (40, 200497), (44, 182270), (55, 145816), (88, 91135), (110, 72908), (121, 66280), (220, 36454), (242, 33140), (440, 18227), (484, 16570), (605, 13256), (968, 8285), (1210, 6628), (1657, 4840), (2420, 3314)]