11985804520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{6968491}}^1$

素因数の和:6968545

約数の個数: 32

約数和(自身を含む): 27595228320

約数和(自身を除く): 15609423800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 6968491, 13936982, 27873964, 34842455, 55747928, 69684910, 139369820, 278739640, 299645113, 599290226, 1198580452, 1498225565, 2397160904, 2996451130, 5992902260, 11985804520]

約数ペア:

[(1, 11985804520), (2, 5992902260), (4, 2996451130), (5, 2397160904), (8, 1498225565), (10, 1198580452), (20, 599290226), (40, 299645113), (43, 278739640), (86, 139369820), (172, 69684910), (215, 55747928), (344, 34842455), (430, 27873964), (860, 13936982), (1720, 6968491)]