128816500

素因数分解:

$2^2\times 5^3\times {\mathrm{53}}^1\times {\mathrm{4861}}^1$

素因数の和:4933

約数の個数: 48

約数和(自身を含む): 286702416

約数和(自身を除く): 157885916

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 125, 212, 250, 265, 500, 530, 1060, 1325, 2650, 4861, 5300, 6625, 9722, 13250, 19444, 24305, 26500, 48610, 97220, 121525, 243050, 257633, 486100, 515266, 607625, 1030532, 1215250, 1288165, 2430500, 2576330, 5152660, 6440825, 12881650, 25763300, 32204125, 64408250, 128816500]

約数ペア:

[(1, 128816500), (2, 64408250), (4, 32204125), (5, 25763300), (10, 12881650), (20, 6440825), (25, 5152660), (50, 2576330), (53, 2430500), (100, 1288165), (106, 1215250), (125, 1030532), (212, 607625), (250, 515266), (265, 486100), (500, 257633), (530, 243050), (1060, 121525), (1325, 97220), (2650, 48610), (4861, 26500), (5300, 24305), (6625, 19444), (9722, 13250)]