19454710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 40310784

約数和(自身を除く): 20856074

約数列:

[1, 2, 5, 10, 11, 22, 47, 53, 55, 71, 94, 106, 110, 142, 235, 265, 355, 470, 517, 530, 583, 710, 781, 1034, 1166, 1562, 2491, 2585, 2915, 3337, 3763, 3905, 4982, 5170, 5830, 6674, 7526, 7810, 12455, 16685, 18815, 24910, 27401, 33370, 36707, 37630, 41393, 54802, 73414, 82786, 137005, 176861, 183535, 206965, 274010, 353722, 367070, 413930, 884305, 1768610, 1945471, 3890942, 9727355, 19454710]

約数ペア:

[(1, 19454710), (2, 9727355), (5, 3890942), (10, 1945471), (11, 1768610), (22, 884305), (47, 413930), (53, 367070), (55, 353722), (71, 274010), (94, 206965), (106, 183535), (110, 176861), (142, 137005), (235, 82786), (265, 73414), (355, 54802), (470, 41393), (517, 37630), (530, 36707), (583, 33370), (710, 27401), (781, 24910), (1034, 18815), (1166, 16685), (1562, 12455), (2491, 7810), (2585, 7526), (2915, 6674), (3337, 5830), (3763, 5170), (3905, 4982)]