64990720

素因数分解:

$2^9\times 5^1\times {\mathrm{53}}^1\times {\mathrm{479}}^1$

素因数の和:555

約数の個数: 80

約数和(自身を含む): 159096960

約数和(自身を除く): 94106240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 256, 265, 320, 424, 479, 512, 530, 640, 848, 958, 1060, 1280, 1696, 1916, 2120, 2395, 2560, 3392, 3832, 4240, 4790, 6784, 7664, 8480, 9580, 13568, 15328, 16960, 19160, 25387, 27136, 30656, 33920, 38320, 50774, 61312, 67840, 76640, 101548, 122624, 126935, 135680, 153280, 203096, 245248, 253870, 306560, 406192, 507740, 613120, 812384, 1015480, 1226240, 1624768, 2030960, 3249536, 4061920, 6499072, 8123840, 12998144, 16247680, 32495360, 64990720]

約数ペア:

[(1, 64990720), (2, 32495360), (4, 16247680), (5, 12998144), (8, 8123840), (10, 6499072), (16, 4061920), (20, 3249536), (32, 2030960), (40, 1624768), (53, 1226240), (64, 1015480), (80, 812384), (106, 613120), (128, 507740), (160, 406192), (212, 306560), (256, 253870), (265, 245248), (320, 203096), (424, 153280), (479, 135680), (512, 126935), (530, 122624), (640, 101548), (848, 76640), (958, 67840), (1060, 61312), (1280, 50774), (1696, 38320), (1916, 33920), (2120, 30656), (2395, 27136), (2560, 25387), (3392, 19160), (3832, 16960), (4240, 15328), (4790, 13568), (6784, 9580), (7664, 8480)]