648384240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{385943}}^1$

素因数の和:385966

約数の個数: 80

約数和(自身を含む): 2297138688

約数和(自身を除く): 1648754448

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, 385943, 771886, 1157829, 1543772, 1929715, 2315658, 2701601, 3087544, 3859430, 4631316, 5403202, 5789145, 6175088, 7718860, 8104803, 9262632, 10806404, 11578290, 13508005, 15437720, 16209606, 18525264, 21612808, 23156580, 27016010, 30875440, 32419212, 40524015, 43225616, 46313160, 54032020, 64838424, 81048030, 92626320, 108064040, 129676848, 162096060, 216128080, 324192120, 648384240]

約数ペア:

[(1, 648384240), (2, 324192120), (3, 216128080), (4, 162096060), (5, 129676848), (6, 108064040), (7, 92626320), (8, 81048030), (10, 64838424), (12, 54032020), (14, 46313160), (15, 43225616), (16, 40524015), (20, 32419212), (21, 30875440), (24, 27016010), (28, 23156580), (30, 21612808), (35, 18525264), (40, 16209606), (42, 15437720), (48, 13508005), (56, 11578290), (60, 10806404), (70, 9262632), (80, 8104803), (84, 7718860), (105, 6175088), (112, 5789145), (120, 5403202), (140, 4631316), (168, 3859430), (210, 3087544), (240, 2701601), (280, 2315658), (336, 1929715), (420, 1543772), (560, 1157829), (840, 771886), (1680, 385943)]