971306420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{991129}}^1$

素因数の和:991152

約数の個数: 36

約数和(自身を含む): 2372765220

約数和(自身を除く): 1401458800

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 991129, 1982258, 3964516, 4955645, 6937903, 9911290, 13875806, 19822580, 27751612, 34689515, 48565321, 69379030, 97130642, 138758060, 194261284, 242826605, 485653210, 971306420]

約数ペア:

[(1, 971306420), (2, 485653210), (4, 242826605), (5, 194261284), (7, 138758060), (10, 97130642), (14, 69379030), (20, 48565321), (28, 34689515), (35, 27751612), (49, 19822580), (70, 13875806), (98, 9911290), (140, 6937903), (196, 4955645), (245, 3964516), (490, 1982258), (980, 991129)]