25187920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1$

素因数の和:332

約数の個数: 80

約数和(自身を含む): 62763840

約数和(自身を除く): 37575920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 73, 76, 80, 95, 146, 152, 190, 227, 292, 304, 365, 380, 454, 584, 730, 760, 908, 1135, 1168, 1387, 1460, 1520, 1816, 2270, 2774, 2920, 3632, 4313, 4540, 5548, 5840, 6935, 8626, 9080, 11096, 13870, 16571, 17252, 18160, 21565, 22192, 27740, 33142, 34504, 43130, 55480, 66284, 69008, 82855, 86260, 110960, 132568, 165710, 172520, 265136, 314849, 331420, 345040, 629698, 662840, 1259396, 1325680, 1574245, 2518792, 3148490, 5037584, 6296980, 12593960, 25187920]

約数ペア:

[(1, 25187920), (2, 12593960), (4, 6296980), (5, 5037584), (8, 3148490), (10, 2518792), (16, 1574245), (19, 1325680), (20, 1259396), (38, 662840), (40, 629698), (73, 345040), (76, 331420), (80, 314849), (95, 265136), (146, 172520), (152, 165710), (190, 132568), (227, 110960), (292, 86260), (304, 82855), (365, 69008), (380, 66284), (454, 55480), (584, 43130), (730, 34504), (760, 33142), (908, 27740), (1135, 22192), (1168, 21565), (1387, 18160), (1460, 17252), (1520, 16571), (1816, 13870), (2270, 11096), (2774, 9080), (2920, 8626), (3632, 6935), (4313, 5840), (4540, 5548)]