28660400

素因数分解:

$2^4\times 5^2\times {\mathrm{137}}^1\times {\mathrm{523}}^1$

素因数の和:678

約数の個数: 60

約数和(自身を含む): 69491832

約数和(自身を除く): 40831432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 137, 200, 274, 400, 523, 548, 685, 1046, 1096, 1370, 2092, 2192, 2615, 2740, 3425, 4184, 5230, 5480, 6850, 8368, 10460, 10960, 13075, 13700, 20920, 26150, 27400, 41840, 52300, 54800, 71651, 104600, 143302, 209200, 286604, 358255, 573208, 716510, 1146416, 1433020, 1791275, 2866040, 3582550, 5732080, 7165100, 14330200, 28660400]

約数ペア:

[(1, 28660400), (2, 14330200), (4, 7165100), (5, 5732080), (8, 3582550), (10, 2866040), (16, 1791275), (20, 1433020), (25, 1146416), (40, 716510), (50, 573208), (80, 358255), (100, 286604), (137, 209200), (200, 143302), (274, 104600), (400, 71651), (523, 54800), (548, 52300), (685, 41840), (1046, 27400), (1096, 26150), (1370, 20920), (2092, 13700), (2192, 13075), (2615, 10960), (2740, 10460), (3425, 8368), (4184, 6850), (5230, 5480)]