131495420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{1231}}^1$

素因数の和:1363

約数の個数: 72

約数和(自身を含む): 324434880

約数和(自身を除く): 192939460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 109, 140, 196, 218, 245, 436, 490, 545, 763, 980, 1090, 1231, 1526, 2180, 2462, 3052, 3815, 4924, 5341, 6155, 7630, 8617, 10682, 12310, 15260, 17234, 21364, 24620, 26705, 34468, 43085, 53410, 60319, 86170, 106820, 120638, 134179, 172340, 241276, 268358, 301595, 536716, 603190, 670895, 939253, 1206380, 1341790, 1878506, 2683580, 3757012, 4696265, 6574771, 9392530, 13149542, 18785060, 26299084, 32873855, 65747710, 131495420]

約数ペア:

[(1, 131495420), (2, 65747710), (4, 32873855), (5, 26299084), (7, 18785060), (10, 13149542), (14, 9392530), (20, 6574771), (28, 4696265), (35, 3757012), (49, 2683580), (70, 1878506), (98, 1341790), (109, 1206380), (140, 939253), (196, 670895), (218, 603190), (245, 536716), (436, 301595), (490, 268358), (545, 241276), (763, 172340), (980, 134179), (1090, 120638), (1231, 106820), (1526, 86170), (2180, 60319), (2462, 53410), (3052, 43085), (3815, 34468), (4924, 26705), (5341, 24620), (6155, 21364), (7630, 17234), (8617, 15260), (10682, 12310)]