1221909190

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{271}}^1\times {\mathrm{1249}}^1$

素因数の和:1565

約数の個数: 48

約数和(自身を含む): 2331720000

約数和(自身を除く): 1109810810

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 271, 361, 542, 722, 1249, 1355, 1805, 2498, 2710, 3610, 5149, 6245, 10298, 12490, 23731, 25745, 47462, 51490, 97831, 118655, 195662, 237310, 338479, 450889, 489155, 676958, 901778, 978310, 1692395, 2254445, 3384790, 4508890, 6431101, 12862202, 32155505, 64311010, 122190919, 244381838, 610954595, 1221909190]

約数ペア:

[(1, 1221909190), (2, 610954595), (5, 244381838), (10, 122190919), (19, 64311010), (38, 32155505), (95, 12862202), (190, 6431101), (271, 4508890), (361, 3384790), (542, 2254445), (722, 1692395), (1249, 978310), (1355, 901778), (1805, 676958), (2498, 489155), (2710, 450889), (3610, 338479), (5149, 237310), (6245, 195662), (10298, 118655), (12490, 97831), (23731, 51490), (25745, 47462)]