209790420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{1093}}^1$

素因数の和:1569

約数の個数: 96

約数和(自身を含む): 673413888

約数和(自身を除く): 463623468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 457, 914, 1093, 1371, 1828, 2186, 2285, 2742, 3199, 3279, 4372, 4570, 5465, 5484, 6398, 6558, 6855, 7651, 9140, 9597, 10930, 12796, 13116, 13710, 15302, 15995, 16395, 19194, 21860, 22953, 27420, 30604, 31990, 32790, 38255, 38388, 45906, 47985, 63980, 65580, 76510, 91812, 95970, 114765, 153020, 191940, 229530, 459060, 499501, 999002, 1498503, 1998004, 2497505, 2997006, 3496507, 4995010, 5994012, 6993014, 7492515, 9990020, 10489521, 13986028, 14985030, 17482535, 20979042, 29970060, 34965070, 41958084, 52447605, 69930140, 104895210, 209790420]

約数ペア:

[(1, 209790420), (2, 104895210), (3, 69930140), (4, 52447605), (5, 41958084), (6, 34965070), (7, 29970060), (10, 20979042), (12, 17482535), (14, 14985030), (15, 13986028), (20, 10489521), (21, 9990020), (28, 7492515), (30, 6993014), (35, 5994012), (42, 4995010), (60, 3496507), (70, 2997006), (84, 2497505), (105, 1998004), (140, 1498503), (210, 999002), (420, 499501), (457, 459060), (914, 229530), (1093, 191940), (1371, 153020), (1828, 114765), (2186, 95970), (2285, 91812), (2742, 76510), (3199, 65580), (3279, 63980), (4372, 47985), (4570, 45906), (5465, 38388), (5484, 38255), (6398, 32790), (6558, 31990), (6855, 30604), (7651, 27420), (9140, 22953), (9597, 21860), (10930, 19194), (12796, 16395), (13116, 15995), (13710, 15302)]