64756720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{115637}}^1$

素因数の和:115657

約数の個数: 40

約数和(自身を含む): 172069344

約数和(自身を除く): 107312624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 115637, 231274, 462548, 578185, 809459, 925096, 1156370, 1618918, 1850192, 2312740, 3237836, 4047295, 4625480, 6475672, 8094590, 9250960, 12951344, 16189180, 32378360, 64756720]

約数ペア:

[(1, 64756720), (2, 32378360), (4, 16189180), (5, 12951344), (7, 9250960), (8, 8094590), (10, 6475672), (14, 4625480), (16, 4047295), (20, 3237836), (28, 2312740), (35, 1850192), (40, 1618918), (56, 1156370), (70, 925096), (80, 809459), (112, 578185), (140, 462548), (280, 231274), (560, 115637)]