278851160

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{142271}}^1$

素因数の和:142296

約数の個数: 48

約数和(自身を含む): 729855360

約数和(自身を除く): 451004200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 142271, 284542, 569084, 711355, 995897, 1138168, 1422710, 1991794, 2845420, 3983588, 4979485, 5690840, 6971279, 7967176, 9958970, 13942558, 19917940, 27885116, 34856395, 39835880, 55770232, 69712790, 139425580, 278851160]

約数ペア:

[(1, 278851160), (2, 139425580), (4, 69712790), (5, 55770232), (7, 39835880), (8, 34856395), (10, 27885116), (14, 19917940), (20, 13942558), (28, 9958970), (35, 7967176), (40, 6971279), (49, 5690840), (56, 4979485), (70, 3983588), (98, 2845420), (140, 1991794), (196, 1422710), (245, 1138168), (280, 995897), (392, 711355), (490, 569084), (980, 284542), (1960, 142271)]