18276520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:334

約数の個数: 64

約数和(自身を含む): 43215120

約数和(自身を除く): 24938600

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 53, 74, 106, 148, 185, 212, 233, 265, 296, 370, 424, 466, 530, 740, 932, 1060, 1165, 1480, 1864, 1961, 2120, 2330, 3922, 4660, 7844, 8621, 9320, 9805, 12349, 15688, 17242, 19610, 24698, 34484, 39220, 43105, 49396, 61745, 68968, 78440, 86210, 98792, 123490, 172420, 246980, 344840, 456913, 493960, 913826, 1827652, 2284565, 3655304, 4569130, 9138260, 18276520]

約数ペア:

[(1, 18276520), (2, 9138260), (4, 4569130), (5, 3655304), (8, 2284565), (10, 1827652), (20, 913826), (37, 493960), (40, 456913), (53, 344840), (74, 246980), (106, 172420), (148, 123490), (185, 98792), (212, 86210), (233, 78440), (265, 68968), (296, 61745), (370, 49396), (424, 43105), (466, 39220), (530, 34484), (740, 24698), (932, 19610), (1060, 17242), (1165, 15688), (1480, 12349), (1864, 9805), (1961, 9320), (2120, 8621), (2330, 7844), (3922, 4660)]