51540920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{929}}^1$

素因数の和:1032

約数の個数: 64

約数和(自身を含む): 123876000

約数和(自身を除く): 72335080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 73, 76, 95, 146, 152, 190, 292, 365, 380, 584, 730, 760, 929, 1387, 1460, 1858, 2774, 2920, 3716, 4645, 5548, 6935, 7432, 9290, 11096, 13870, 17651, 18580, 27740, 35302, 37160, 55480, 67817, 70604, 88255, 135634, 141208, 176510, 271268, 339085, 353020, 542536, 678170, 706040, 1288523, 1356340, 2577046, 2712680, 5154092, 6442615, 10308184, 12885230, 25770460, 51540920]

約数ペア:

[(1, 51540920), (2, 25770460), (4, 12885230), (5, 10308184), (8, 6442615), (10, 5154092), (19, 2712680), (20, 2577046), (38, 1356340), (40, 1288523), (73, 706040), (76, 678170), (95, 542536), (146, 353020), (152, 339085), (190, 271268), (292, 176510), (365, 141208), (380, 135634), (584, 88255), (730, 70604), (760, 67817), (929, 55480), (1387, 37160), (1460, 35302), (1858, 27740), (2774, 18580), (2920, 17651), (3716, 13870), (4645, 11096), (5548, 9290), (6935, 7432)]