20595840

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{631}}^1$

素因数の和:670

約数の個数: 128

約数和(自身を含む): 69621120

約数和(自身を除く): 49025280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 384, 408, 480, 510, 544, 631, 640, 680, 816, 960, 1020, 1088, 1262, 1360, 1632, 1893, 1920, 2040, 2176, 2524, 2720, 3155, 3264, 3786, 4080, 5048, 5440, 6310, 6528, 7572, 8160, 9465, 10096, 10727, 10880, 12620, 15144, 16320, 18930, 20192, 21454, 25240, 30288, 32181, 32640, 37860, 40384, 42908, 50480, 53635, 60576, 64362, 75720, 80768, 85816, 100960, 107270, 121152, 128724, 151440, 160905, 171632, 201920, 214540, 242304, 257448, 302880, 321810, 343264, 403840, 429080, 514896, 605760, 643620, 686528, 858160, 1029792, 1211520, 1287240, 1373056, 1716320, 2059584, 2574480, 3432640, 4119168, 5148960, 6865280, 10297920, 20595840]

約数ペア:

[(1, 20595840), (2, 10297920), (3, 6865280), (4, 5148960), (5, 4119168), (6, 3432640), (8, 2574480), (10, 2059584), (12, 1716320), (15, 1373056), (16, 1287240), (17, 1211520), (20, 1029792), (24, 858160), (30, 686528), (32, 643620), (34, 605760), (40, 514896), (48, 429080), (51, 403840), (60, 343264), (64, 321810), (68, 302880), (80, 257448), (85, 242304), (96, 214540), (102, 201920), (120, 171632), (128, 160905), (136, 151440), (160, 128724), (170, 121152), (192, 107270), (204, 100960), (240, 85816), (255, 80768), (272, 75720), (320, 64362), (340, 60576), (384, 53635), (408, 50480), (480, 42908), (510, 40384), (544, 37860), (631, 32640), (640, 32181), (680, 30288), (816, 25240), (960, 21454), (1020, 20192), (1088, 18930), (1262, 16320), (1360, 15144), (1632, 12620), (1893, 10880), (1920, 10727), (2040, 10096), (2176, 9465), (2524, 8160), (2720, 7572), (3155, 6528), (3264, 6310), (3786, 5440), (4080, 5048)]