215308240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{384479}}^1$

素因数の和:384499

約数の個数: 40

約数和(自身を含む): 572106240

約数和(自身を除く): 356798000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 384479, 768958, 1537916, 1922395, 2691353, 3075832, 3844790, 5382706, 6151664, 7689580, 10765412, 13456765, 15379160, 21530824, 26913530, 30758320, 43061648, 53827060, 107654120, 215308240]

約数ペア:

[(1, 215308240), (2, 107654120), (4, 53827060), (5, 43061648), (7, 30758320), (8, 26913530), (10, 21530824), (14, 15379160), (16, 13456765), (20, 10765412), (28, 7689580), (35, 6151664), (40, 5382706), (56, 3844790), (70, 3075832), (80, 2691353), (112, 1922395), (140, 1537916), (280, 768958), (560, 384479)]