51451240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67699}}^1$

素因数の和:67729

約数の個数: 32

約数和(自身を含む): 121860000

約数和(自身を除く): 70408760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 67699, 135398, 270796, 338495, 541592, 676990, 1286281, 1353980, 2572562, 2707960, 5145124, 6431405, 10290248, 12862810, 25725620, 51451240]

約数ペア:

[(1, 51451240), (2, 25725620), (4, 12862810), (5, 10290248), (8, 6431405), (10, 5145124), (19, 2707960), (20, 2572562), (38, 1353980), (40, 1286281), (76, 676990), (95, 541592), (152, 338495), (190, 270796), (380, 135398), (760, 67699)]