20309600

素因数分解:

$2^5\times 5^2\times {\mathrm{53}}^1\times {\mathrm{479}}^1$

素因数の和:552

約数の個数: 72

約数和(自身を含む): 50621760

約数和(自身を除く): 30312160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 53, 80, 100, 106, 160, 200, 212, 265, 400, 424, 479, 530, 800, 848, 958, 1060, 1325, 1696, 1916, 2120, 2395, 2650, 3832, 4240, 4790, 5300, 7664, 8480, 9580, 10600, 11975, 15328, 19160, 21200, 23950, 25387, 38320, 42400, 47900, 50774, 76640, 95800, 101548, 126935, 191600, 203096, 253870, 383200, 406192, 507740, 634675, 812384, 1015480, 1269350, 2030960, 2538700, 4061920, 5077400, 10154800, 20309600]

約数ペア:

[(1, 20309600), (2, 10154800), (4, 5077400), (5, 4061920), (8, 2538700), (10, 2030960), (16, 1269350), (20, 1015480), (25, 812384), (32, 634675), (40, 507740), (50, 406192), (53, 383200), (80, 253870), (100, 203096), (106, 191600), (160, 126935), (200, 101548), (212, 95800), (265, 76640), (400, 50774), (424, 47900), (479, 42400), (530, 38320), (800, 25387), (848, 23950), (958, 21200), (1060, 19160), (1325, 15328), (1696, 11975), (1916, 10600), (2120, 9580), (2395, 8480), (2650, 7664), (3832, 5300), (4240, 4790)]