51665560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{433}}^1$

素因数の和:620

約数の個数: 64

約数和(自身を含む): 123429600

約数和(自身を除く): 71764040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 157, 190, 314, 380, 433, 628, 760, 785, 866, 1256, 1570, 1732, 2165, 2983, 3140, 3464, 4330, 5966, 6280, 8227, 8660, 11932, 14915, 16454, 17320, 23864, 29830, 32908, 41135, 59660, 65816, 67981, 82270, 119320, 135962, 164540, 271924, 329080, 339905, 543848, 679810, 1291639, 1359620, 2583278, 2719240, 5166556, 6458195, 10333112, 12916390, 25832780, 51665560]

約数ペア:

[(1, 51665560), (2, 25832780), (4, 12916390), (5, 10333112), (8, 6458195), (10, 5166556), (19, 2719240), (20, 2583278), (38, 1359620), (40, 1291639), (76, 679810), (95, 543848), (152, 339905), (157, 329080), (190, 271924), (314, 164540), (380, 135962), (433, 119320), (628, 82270), (760, 67981), (785, 65816), (866, 59660), (1256, 41135), (1570, 32908), (1732, 29830), (2165, 23864), (2983, 17320), (3140, 16454), (3464, 14915), (4330, 11932), (5966, 8660), (6280, 8227)]