204450820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{2803}}^1$

素因数の和:3340

約数の個数: 48

約数和(自身を含む): 491799168

約数和(自身を除く): 287348348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 521, 1042, 2084, 2605, 2803, 3647, 5210, 5606, 7294, 10420, 11212, 14015, 14588, 18235, 19621, 28030, 36470, 39242, 56060, 72940, 78484, 98105, 196210, 392420, 1460363, 2920726, 5841452, 7301815, 10222541, 14603630, 20445082, 29207260, 40890164, 51112705, 102225410, 204450820]

約数ペア:

[(1, 204450820), (2, 102225410), (4, 51112705), (5, 40890164), (7, 29207260), (10, 20445082), (14, 14603630), (20, 10222541), (28, 7301815), (35, 5841452), (70, 2920726), (140, 1460363), (521, 392420), (1042, 196210), (2084, 98105), (2605, 78484), (2803, 72940), (3647, 56060), (5210, 39242), (5606, 36470), (7294, 28030), (10420, 19621), (11212, 18235), (14015, 14588)]