72642880

素因数分解:

$2^6\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1657}}^1$

素因数の和:1811

約数の個数: 56

約数和(自身を含む): 174348648

約数和(自身を除く): 101705768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 137, 160, 274, 320, 548, 685, 1096, 1370, 1657, 2192, 2740, 3314, 4384, 5480, 6628, 8285, 8768, 10960, 13256, 16570, 21920, 26512, 33140, 43840, 53024, 66280, 106048, 132560, 227009, 265120, 454018, 530240, 908036, 1135045, 1816072, 2270090, 3632144, 4540180, 7264288, 9080360, 14528576, 18160720, 36321440, 72642880]

約数ペア:

[(1, 72642880), (2, 36321440), (4, 18160720), (5, 14528576), (8, 9080360), (10, 7264288), (16, 4540180), (20, 3632144), (32, 2270090), (40, 1816072), (64, 1135045), (80, 908036), (137, 530240), (160, 454018), (274, 265120), (320, 227009), (548, 132560), (685, 106048), (1096, 66280), (1370, 53024), (1657, 43840), (2192, 33140), (2740, 26512), (3314, 21920), (4384, 16570), (5480, 13256), (6628, 10960), (8285, 8768)]