20682240

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{2693}}^1$

素因数の和:2719

約数の個数: 80

約数和(自身を含む): 66143088

約数和(自身を除く): 45460848

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1920, 2560, 2693, 3840, 5386, 7680, 8079, 10772, 13465, 16158, 21544, 26930, 32316, 40395, 43088, 53860, 64632, 80790, 86176, 107720, 129264, 161580, 172352, 215440, 258528, 323160, 344704, 430880, 517056, 646320, 689408, 861760, 1034112, 1292640, 1378816, 1723520, 2068224, 2585280, 3447040, 4136448, 5170560, 6894080, 10341120, 20682240]

約数ペア:

[(1, 20682240), (2, 10341120), (3, 6894080), (4, 5170560), (5, 4136448), (6, 3447040), (8, 2585280), (10, 2068224), (12, 1723520), (15, 1378816), (16, 1292640), (20, 1034112), (24, 861760), (30, 689408), (32, 646320), (40, 517056), (48, 430880), (60, 344704), (64, 323160), (80, 258528), (96, 215440), (120, 172352), (128, 161580), (160, 129264), (192, 107720), (240, 86176), (256, 80790), (320, 64632), (384, 53860), (480, 43088), (512, 40395), (640, 32316), (768, 26930), (960, 21544), (1280, 16158), (1536, 13465), (1920, 10772), (2560, 8079), (2693, 7680), (3840, 5386)]