4009940

素因数分解:

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

素因数の和:1688

約数の個数: 36

約数和(自身を含む): 9261588

約数和(自身を除く): 5251648

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 1657, 2420, 3314, 6628, 8285, 16570, 18227, 33140, 36454, 72908, 91135, 182270, 200497, 364540, 400994, 801988, 1002485, 2004970, 4009940]

約数ペア:

[(1, 4009940), (2, 2004970), (4, 1002485), (5, 801988), (10, 400994), (11, 364540), (20, 200497), (22, 182270), (44, 91135), (55, 72908), (110, 36454), (121, 33140), (220, 18227), (242, 16570), (484, 8285), (605, 6628), (1210, 3314), (1657, 2420)]