20143880

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3623}}^1$

素因数の和:3773

約数の個数: 32

約数和(自身を含む): 45662400

約数和(自身を除く): 25518520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3623, 5560, 7246, 14492, 18115, 28984, 36230, 72460, 144920, 503597, 1007194, 2014388, 2517985, 4028776, 5035970, 10071940, 20143880]

約数ペア:

[(1, 20143880), (2, 10071940), (4, 5035970), (5, 4028776), (8, 2517985), (10, 2014388), (20, 1007194), (40, 503597), (139, 144920), (278, 72460), (556, 36230), (695, 28984), (1112, 18115), (1390, 14492), (2780, 7246), (3623, 5560)]