18765180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:356

約数の個数: 144

約数和(自身を含む): 66515904

約数和(自身を除く): 47750724

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 53, 60, 63, 70, 84, 90, 105, 106, 126, 140, 159, 180, 210, 212, 252, 265, 281, 315, 318, 371, 420, 477, 530, 562, 630, 636, 742, 795, 843, 954, 1060, 1113, 1124, 1260, 1405, 1484, 1590, 1686, 1855, 1908, 1967, 2226, 2385, 2529, 2810, 3180, 3339, 3372, 3710, 3934, 4215, 4452, 4770, 5058, 5565, 5620, 5901, 6678, 7420, 7868, 8430, 9540, 9835, 10116, 11130, 11802, 12645, 13356, 14893, 16695, 16860, 17703, 19670, 22260, 23604, 25290, 29505, 29786, 33390, 35406, 39340, 44679, 50580, 59010, 59572, 66780, 70812, 74465, 88515, 89358, 104251, 118020, 134037, 148930, 177030, 178716, 208502, 223395, 268074, 297860, 312753, 354060, 417004, 446790, 521255, 536148, 625506, 670185, 893580, 938259, 1042510, 1251012, 1340370, 1563765, 1876518, 2085020, 2680740, 3127530, 3753036, 4691295, 6255060, 9382590, 18765180]

約数ペア:

[(1, 18765180), (2, 9382590), (3, 6255060), (4, 4691295), (5, 3753036), (6, 3127530), (7, 2680740), (9, 2085020), (10, 1876518), (12, 1563765), (14, 1340370), (15, 1251012), (18, 1042510), (20, 938259), (21, 893580), (28, 670185), (30, 625506), (35, 536148), (36, 521255), (42, 446790), (45, 417004), (53, 354060), (60, 312753), (63, 297860), (70, 268074), (84, 223395), (90, 208502), (105, 178716), (106, 177030), (126, 148930), (140, 134037), (159, 118020), (180, 104251), (210, 89358), (212, 88515), (252, 74465), (265, 70812), (281, 66780), (315, 59572), (318, 59010), (371, 50580), (420, 44679), (477, 39340), (530, 35406), (562, 33390), (630, 29786), (636, 29505), (742, 25290), (795, 23604), (843, 22260), (954, 19670), (1060, 17703), (1113, 16860), (1124, 16695), (1260, 14893), (1405, 13356), (1484, 12645), (1590, 11802), (1686, 11130), (1855, 10116), (1908, 9835), (1967, 9540), (2226, 8430), (2385, 7868), (2529, 7420), (2810, 6678), (3180, 5901), (3339, 5620), (3372, 5565), (3710, 5058), (3934, 4770), (4215, 4452)]