20893160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{743}}^1$

素因数の和:810

約数の個数: 64

約数和(自身を含む): 50889600

約数和(自身を除く): 29996440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 148, 152, 185, 190, 296, 370, 380, 703, 740, 743, 760, 1406, 1480, 1486, 2812, 2972, 3515, 3715, 5624, 5944, 7030, 7430, 14060, 14117, 14860, 27491, 28120, 28234, 29720, 54982, 56468, 70585, 109964, 112936, 137455, 141170, 219928, 274910, 282340, 522329, 549820, 564680, 1044658, 1099640, 2089316, 2611645, 4178632, 5223290, 10446580, 20893160]

約数ペア:

[(1, 20893160), (2, 10446580), (4, 5223290), (5, 4178632), (8, 2611645), (10, 2089316), (19, 1099640), (20, 1044658), (37, 564680), (38, 549820), (40, 522329), (74, 282340), (76, 274910), (95, 219928), (148, 141170), (152, 137455), (185, 112936), (190, 109964), (296, 70585), (370, 56468), (380, 54982), (703, 29720), (740, 28234), (743, 28120), (760, 27491), (1406, 14860), (1480, 14117), (1486, 14060), (2812, 7430), (2972, 7030), (3515, 5944), (3715, 5624)]