27489980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{28051}}^1$

素因数の和:28074

約数の個数: 36

約数和(自身を含む): 67156488

約数和(自身を除く): 39666508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 28051, 56102, 112204, 140255, 196357, 280510, 392714, 561020, 785428, 981785, 1374499, 1963570, 2748998, 3927140, 5497996, 6872495, 13744990, 27489980]

約数ペア:

[(1, 27489980), (2, 13744990), (4, 6872495), (5, 5497996), (7, 3927140), (10, 2748998), (14, 1963570), (20, 1374499), (28, 981785), (35, 785428), (49, 561020), (70, 392714), (98, 280510), (140, 196357), (196, 140255), (245, 112204), (490, 56102), (980, 28051)]