39042920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139439}}^1$

素因数の和:139457

約数の個数: 32

約数和(自身を含む): 100396800

約数和(自身を除く): 61353880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 139439, 278878, 557756, 697195, 976073, 1115512, 1394390, 1952146, 2788780, 3904292, 4880365, 5577560, 7808584, 9760730, 19521460, 39042920]

約数ペア:

[(1, 39042920), (2, 19521460), (4, 9760730), (5, 7808584), (7, 5577560), (8, 4880365), (10, 3904292), (14, 2788780), (20, 1952146), (28, 1394390), (35, 1115512), (40, 976073), (56, 697195), (70, 557756), (140, 278878), (280, 139439)]