81867350

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{277}}^1$

素因数の和:569

約数の個数: 48

約数和(自身を含む): 160087968

約数和(自身を除く): 78220618

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 230, 257, 277, 514, 554, 575, 1150, 1285, 1385, 2570, 2770, 5911, 6371, 6425, 6925, 11822, 12742, 12850, 13850, 29555, 31855, 59110, 63710, 71189, 142378, 147775, 159275, 295550, 318550, 355945, 711890, 1637347, 1779725, 3274694, 3559450, 8186735, 16373470, 40933675, 81867350]

約数ペア:

[(1, 81867350), (2, 40933675), (5, 16373470), (10, 8186735), (23, 3559450), (25, 3274694), (46, 1779725), (50, 1637347), (115, 711890), (230, 355945), (257, 318550), (277, 295550), (514, 159275), (554, 147775), (575, 142378), (1150, 71189), (1285, 63710), (1385, 59110), (2570, 31855), (2770, 29555), (5911, 13850), (6371, 12850), (6425, 12742), (6925, 11822)]