80505180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{353}}^1$

素因数の和:556

約数の個数: 144

約数和(自身を含む): 281421504

約数和(自身を除く): 200916324

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 181, 210, 252, 315, 353, 362, 420, 543, 630, 706, 724, 905, 1059, 1086, 1260, 1267, 1412, 1629, 1765, 1810, 2118, 2172, 2471, 2534, 2715, 3177, 3258, 3530, 3620, 3801, 4236, 4942, 5068, 5295, 5430, 6335, 6354, 6516, 7060, 7413, 7602, 8145, 9884, 10590, 10860, 11403, 12355, 12670, 12708, 14826, 15204, 15885, 16290, 19005, 21180, 22239, 22806, 24710, 25340, 29652, 31770, 32580, 37065, 38010, 44478, 45612, 49420, 57015, 63540, 63893, 74130, 76020, 88956, 111195, 114030, 127786, 148260, 191679, 222390, 228060, 255572, 319465, 383358, 444780, 447251, 575037, 638930, 766716, 894502, 958395, 1150074, 1277860, 1341753, 1789004, 1916790, 2236255, 2300148, 2683506, 2875185, 3833580, 4025259, 4472510, 5367012, 5750370, 6708765, 8050518, 8945020, 11500740, 13417530, 16101036, 20126295, 26835060, 40252590, 80505180]

約数ペア:

[(1, 80505180), (2, 40252590), (3, 26835060), (4, 20126295), (5, 16101036), (6, 13417530), (7, 11500740), (9, 8945020), (10, 8050518), (12, 6708765), (14, 5750370), (15, 5367012), (18, 4472510), (20, 4025259), (21, 3833580), (28, 2875185), (30, 2683506), (35, 2300148), (36, 2236255), (42, 1916790), (45, 1789004), (60, 1341753), (63, 1277860), (70, 1150074), (84, 958395), (90, 894502), (105, 766716), (126, 638930), (140, 575037), (180, 447251), (181, 444780), (210, 383358), (252, 319465), (315, 255572), (353, 228060), (362, 222390), (420, 191679), (543, 148260), (630, 127786), (706, 114030), (724, 111195), (905, 88956), (1059, 76020), (1086, 74130), (1260, 63893), (1267, 63540), (1412, 57015), (1629, 49420), (1765, 45612), (1810, 44478), (2118, 38010), (2172, 37065), (2471, 32580), (2534, 31770), (2715, 29652), (3177, 25340), (3258, 24710), (3530, 22806), (3620, 22239), (3801, 21180), (4236, 19005), (4942, 16290), (5068, 15885), (5295, 15204), (5430, 14826), (6335, 12708), (6354, 12670), (6516, 12355), (7060, 11403), (7413, 10860), (7602, 10590), (8145, 9884)]