256331375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2917}}^1$

素因数の和:2988

約数の個数: 32

約数和(自身を含む): 345958080

約数和(自身を除く): 89626705

約数列:

[1, 5, 19, 25, 37, 95, 125, 185, 475, 703, 925, 2375, 2917, 3515, 4625, 14585, 17575, 55423, 72925, 87875, 107929, 277115, 364625, 539645, 1385575, 2050651, 2698225, 6927875, 10253255, 13491125, 51266275, 256331375]

約数ペア:

[(1, 256331375), (5, 51266275), (19, 13491125), (25, 10253255), (37, 6927875), (95, 2698225), (125, 2050651), (185, 1385575), (475, 539645), (703, 364625), (925, 277115), (2375, 107929), (2917, 87875), (3515, 72925), (4625, 55423), (14585, 17575)]