217800240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{129643}}^1$

素因数の和:129666

約数の個数: 80

約数和(自身を含む): 771641088

約数和(自身を除く): 553840848

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 129643, 259286, 388929, 518572, 648215, 777858, 907501, 1037144, 1296430, 1555716, 1815002, 1944645, 2074288, 2592860, 2722503, 3111432, 3630004, 3889290, 4537505, 5185720, 5445006, 6222864, 7260008, 7778580, 9075010, 10371440, 10890012, 13612515, 14520016, 15557160, 18150020, 21780024, 27225030, 31114320, 36300040, 43560048, 54450060, 72600080, 108900120, 217800240]

約数ペア:

[(1, 217800240), (2, 108900120), (3, 72600080), (4, 54450060), (5, 43560048), (6, 36300040), (7, 31114320), (8, 27225030), (10, 21780024), (12, 18150020), (14, 15557160), (15, 14520016), (16, 13612515), (20, 10890012), (21, 10371440), (24, 9075010), (28, 7778580), (30, 7260008), (35, 6222864), (40, 5445006), (42, 5185720), (48, 4537505), (56, 3889290), (60, 3630004), (70, 3111432), (80, 2722503), (84, 2592860), (105, 2074288), (112, 1944645), (120, 1815002), (140, 1555716), (168, 1296430), (210, 1037144), (240, 907501), (280, 777858), (336, 648215), (420, 518572), (560, 388929), (840, 259286), (1680, 129643)]