217238980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1551707}}^1$

素因数の和:1551723

約数の個数: 24

約数和(自身を含む): 521373888

約数和(自身を除く): 304134908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1551707, 3103414, 6206828, 7758535, 10861949, 15517070, 21723898, 31034140, 43447796, 54309745, 108619490, 217238980]

約数ペア:

[(1, 217238980), (2, 108619490), (4, 54309745), (5, 43447796), (7, 31034140), (10, 21723898), (14, 15517070), (20, 10861949), (28, 7758535), (35, 6206828), (70, 3103414), (140, 1551707)]