1280911885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{821}}^1\times {\mathrm{1493}}^1$

素因数の和:2349

約数の個数: 32

約数和(自身を含む): 1768417920

約数和(自身を除く): 487506035

約数列:

[1, 5, 11, 19, 55, 95, 209, 821, 1045, 1493, 4105, 7465, 9031, 15599, 16423, 28367, 45155, 77995, 82115, 141835, 171589, 312037, 857945, 1225753, 1560185, 6128765, 13483283, 23289307, 67416415, 116446535, 256182377, 1280911885]

約数ペア:

[(1, 1280911885), (5, 256182377), (11, 116446535), (19, 67416415), (55, 23289307), (95, 13483283), (209, 6128765), (821, 1560185), (1045, 1225753), (1493, 857945), (4105, 312037), (7465, 171589), (9031, 141835), (15599, 82115), (16423, 77995), (28367, 45155)]