81217920

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{6043}}^1$

素因数の和:6072

約数の個数: 128

約数和(自身を含む): 295914240

約数和(自身を除く): 214696320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6043, 6720, 12086, 13440, 18129, 24172, 30215, 36258, 42301, 48344, 60430, 72516, 84602, 90645, 96688, 120860, 126903, 145032, 169204, 181290, 193376, 211505, 241720, 253806, 290064, 338408, 362580, 386752, 423010, 483440, 507612, 580128, 634515, 676816, 725160, 773504, 846020, 966880, 1015224, 1160256, 1269030, 1353632, 1450320, 1692040, 1933760, 2030448, 2320512, 2538060, 2707264, 2900640, 3384080, 3867520, 4060896, 5076120, 5414528, 5801280, 6768160, 8121792, 10152240, 11602560, 13536320, 16243584, 20304480, 27072640, 40608960, 81217920]

約数ペア:

[(1, 81217920), (2, 40608960), (3, 27072640), (4, 20304480), (5, 16243584), (6, 13536320), (7, 11602560), (8, 10152240), (10, 8121792), (12, 6768160), (14, 5801280), (15, 5414528), (16, 5076120), (20, 4060896), (21, 3867520), (24, 3384080), (28, 2900640), (30, 2707264), (32, 2538060), (35, 2320512), (40, 2030448), (42, 1933760), (48, 1692040), (56, 1450320), (60, 1353632), (64, 1269030), (70, 1160256), (80, 1015224), (84, 966880), (96, 846020), (105, 773504), (112, 725160), (120, 676816), (128, 634515), (140, 580128), (160, 507612), (168, 483440), (192, 423010), (210, 386752), (224, 362580), (240, 338408), (280, 290064), (320, 253806), (336, 241720), (384, 211505), (420, 193376), (448, 181290), (480, 169204), (560, 145032), (640, 126903), (672, 120860), (840, 96688), (896, 90645), (960, 84602), (1120, 72516), (1344, 60430), (1680, 48344), (1920, 42301), (2240, 36258), (2688, 30215), (3360, 24172), (4480, 18129), (6043, 13440), (6720, 12086)]