139321840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{248789}}^1$

素因数の和:248809

約数の個数: 40

約数和(自身を含む): 370199520

約数和(自身を除く): 230877680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 248789, 497578, 995156, 1243945, 1741523, 1990312, 2487890, 3483046, 3980624, 4975780, 6966092, 8707615, 9951560, 13932184, 17415230, 19903120, 27864368, 34830460, 69660920, 139321840]

約数ペア:

[(1, 139321840), (2, 69660920), (4, 34830460), (5, 27864368), (7, 19903120), (8, 17415230), (10, 13932184), (14, 9951560), (16, 8707615), (20, 6966092), (28, 4975780), (35, 3980624), (40, 3483046), (56, 2487890), (70, 1990312), (80, 1741523), (112, 1243945), (140, 995156), (280, 497578), (560, 248789)]