218139660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{19867}}^1$

素因数の和:19943

約数の個数: 72

約数和(自身を含む): 672571536

約数和(自身を除く): 454431876

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 19867, 39734, 59601, 79468, 99335, 119202, 178803, 198670, 238404, 298005, 357606, 397340, 596010, 715212, 894015, 1192020, 1211887, 1788030, 2423774, 3576060, 3635661, 4847548, 6059435, 7271322, 10906983, 12118870, 14542644, 18178305, 21813966, 24237740, 36356610, 43627932, 54534915, 72713220, 109069830, 218139660]

約数ペア:

[(1, 218139660), (2, 109069830), (3, 72713220), (4, 54534915), (5, 43627932), (6, 36356610), (9, 24237740), (10, 21813966), (12, 18178305), (15, 14542644), (18, 12118870), (20, 10906983), (30, 7271322), (36, 6059435), (45, 4847548), (60, 3635661), (61, 3576060), (90, 2423774), (122, 1788030), (180, 1211887), (183, 1192020), (244, 894015), (305, 715212), (366, 596010), (549, 397340), (610, 357606), (732, 298005), (915, 238404), (1098, 198670), (1220, 178803), (1830, 119202), (2196, 99335), (2745, 79468), (3660, 59601), (5490, 39734), (10980, 19867)]