205830380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{210031}}^1$

素因数の和:210054

約数の個数: 36

約数和(自身を含む): 502816608

約数和(自身を除く): 296986228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 210031, 420062, 840124, 1050155, 1470217, 2100310, 2940434, 4200620, 5880868, 7351085, 10291519, 14702170, 20583038, 29404340, 41166076, 51457595, 102915190, 205830380]

約数ペア:

[(1, 205830380), (2, 102915190), (4, 51457595), (5, 41166076), (7, 29404340), (10, 20583038), (14, 14702170), (20, 10291519), (28, 7351085), (35, 5880868), (49, 4200620), (70, 2940434), (98, 2100310), (140, 1470217), (196, 1050155), (245, 840124), (490, 420062), (980, 210031)]