20292640

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2393}}^1$

素因数の和:2461

約数の個数: 48

約数和(自身を含む): 48866328

約数和(自身を除く): 28573688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 2120, 2393, 4240, 4786, 8480, 9572, 11965, 19144, 23930, 38288, 47860, 76576, 95720, 126829, 191440, 253658, 382880, 507316, 634145, 1014632, 1268290, 2029264, 2536580, 4058528, 5073160, 10146320, 20292640]

約数ペア:

[(1, 20292640), (2, 10146320), (4, 5073160), (5, 4058528), (8, 2536580), (10, 2029264), (16, 1268290), (20, 1014632), (32, 634145), (40, 507316), (53, 382880), (80, 253658), (106, 191440), (160, 126829), (212, 95720), (265, 76576), (424, 47860), (530, 38288), (848, 23930), (1060, 19144), (1696, 11965), (2120, 9572), (2393, 8480), (4240, 4786)]