28101440

素因数分解:

$2^6\times 5^1\times {\mathrm{137}}^1\times {\mathrm{641}}^1$

素因数の和:795

約数の個数: 56

約数和(自身を含む): 67510152

約数和(自身を除く): 39408712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 137, 160, 274, 320, 548, 641, 685, 1096, 1282, 1370, 2192, 2564, 2740, 3205, 4384, 5128, 5480, 6410, 8768, 10256, 10960, 12820, 20512, 21920, 25640, 41024, 43840, 51280, 87817, 102560, 175634, 205120, 351268, 439085, 702536, 878170, 1405072, 1756340, 2810144, 3512680, 5620288, 7025360, 14050720, 28101440]

約数ペア:

[(1, 28101440), (2, 14050720), (4, 7025360), (5, 5620288), (8, 3512680), (10, 2810144), (16, 1756340), (20, 1405072), (32, 878170), (40, 702536), (64, 439085), (80, 351268), (137, 205120), (160, 175634), (274, 102560), (320, 87817), (548, 51280), (641, 43840), (685, 41024), (1096, 25640), (1282, 21920), (1370, 20512), (2192, 12820), (2564, 10960), (2740, 10256), (3205, 8768), (4384, 6410), (5128, 5480)]