209317780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{4517}}^1$

素因数の和:4864

約数の個数: 48

約数和(自身を含む): 503991936

約数和(自身を除く): 294674156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 331, 662, 1324, 1655, 2317, 3310, 4517, 4634, 6620, 9034, 9268, 11585, 18068, 22585, 23170, 31619, 45170, 46340, 63238, 90340, 126476, 158095, 316190, 632380, 1495127, 2990254, 5980508, 7475635, 10465889, 14951270, 20931778, 29902540, 41863556, 52329445, 104658890, 209317780]

約数ペア:

[(1, 209317780), (2, 104658890), (4, 52329445), (5, 41863556), (7, 29902540), (10, 20931778), (14, 14951270), (20, 10465889), (28, 7475635), (35, 5980508), (70, 2990254), (140, 1495127), (331, 632380), (662, 316190), (1324, 158095), (1655, 126476), (2317, 90340), (3310, 63238), (4517, 46340), (4634, 45170), (6620, 31619), (9034, 23170), (9268, 22585), (11585, 18068)]