20660384

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{353}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 42819840

約数和(自身を除く): 22159456

約数列:

[1, 2, 4, 8, 16, 31, 32, 59, 62, 118, 124, 236, 248, 353, 472, 496, 706, 944, 992, 1412, 1829, 1888, 2824, 3658, 5648, 7316, 10943, 11296, 14632, 20827, 21886, 29264, 41654, 43772, 58528, 83308, 87544, 166616, 175088, 333232, 350176, 645637, 666464, 1291274, 2582548, 5165096, 10330192, 20660384]

約数ペア:

[(1, 20660384), (2, 10330192), (4, 5165096), (8, 2582548), (16, 1291274), (31, 666464), (32, 645637), (59, 350176), (62, 333232), (118, 175088), (124, 166616), (236, 87544), (248, 83308), (353, 58528), (472, 43772), (496, 41654), (706, 29264), (944, 21886), (992, 20827), (1412, 14632), (1829, 11296), (1888, 10943), (2824, 7316), (3658, 5648)]