280114520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1000409}}^1$

素因数の和:1000427

約数の個数: 32

約数和(自身を含む): 720295200

約数和(自身を除く): 440180680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1000409, 2000818, 4001636, 5002045, 7002863, 8003272, 10004090, 14005726, 20008180, 28011452, 35014315, 40016360, 56022904, 70028630, 140057260, 280114520]

約数ペア:

[(1, 280114520), (2, 140057260), (4, 70028630), (5, 56022904), (7, 40016360), (8, 35014315), (10, 28011452), (14, 20008180), (20, 14005726), (28, 10004090), (35, 8003272), (40, 7002863), (56, 5002045), (70, 4001636), (140, 2000818), (280, 1000409)]