12990421250

素因数分解:

$2^1\times 5^4\times {\mathrm{443}}^1\times {\mathrm{23459}}^1$

素因数の和:23924

約数の個数: 40

約数和(自身を含む): 24405250320

約数和(自身を除く): 11414829070

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 443, 625, 886, 1250, 2215, 4430, 11075, 22150, 23459, 46918, 55375, 110750, 117295, 234590, 276875, 553750, 586475, 1172950, 2932375, 5864750, 10392337, 14661875, 20784674, 29323750, 51961685, 103923370, 259808425, 519616850, 1299042125, 2598084250, 6495210625, 12990421250]

約数ペア:

[(1, 12990421250), (2, 6495210625), (5, 2598084250), (10, 1299042125), (25, 519616850), (50, 259808425), (125, 103923370), (250, 51961685), (443, 29323750), (625, 20784674), (886, 14661875), (1250, 10392337), (2215, 5864750), (4430, 2932375), (11075, 1172950), (22150, 586475), (23459, 553750), (46918, 276875), (55375, 234590), (110750, 117295)]