21165512880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1\times {\mathrm{8059}}^1$

素因数の和:8459

約数の個数: 160

約数和(自身を含む): 67929937920

約数和(自身を除く): 46764425040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 353, 372, 465, 496, 620, 706, 744, 930, 1059, 1240, 1412, 1488, 1765, 1860, 2118, 2480, 2824, 3530, 3720, 4236, 5295, 5648, 7060, 7440, 8059, 8472, 10590, 10943, 14120, 16118, 16944, 21180, 21886, 24177, 28240, 32236, 32829, 40295, 42360, 43772, 48354, 54715, 64472, 65658, 80590, 84720, 87544, 96708, 109430, 120885, 128944, 131316, 161180, 164145, 175088, 193416, 218860, 241770, 249829, 262632, 322360, 328290, 386832, 437720, 483540, 499658, 525264, 644720, 656580, 749487, 875440, 967080, 999316, 1249145, 1313160, 1498974, 1934160, 1998632, 2498290, 2626320, 2844827, 2997948, 3747435, 3997264, 4996580, 5689654, 5995896, 7494870, 8534481, 9993160, 11379308, 11991792, 14224135, 14989740, 17068962, 19986320, 22758616, 28448270, 29979480, 34137924, 42672405, 45517232, 56896540, 59958960, 68275848, 85344810, 88189637, 113793080, 136551696, 170689620, 176379274, 227586160, 264568911, 341379240, 352758548, 440948185, 529137822, 682758480, 705517096, 881896370, 1058275644, 1322844555, 1411034192, 1763792740, 2116551288, 2645689110, 3527585480, 4233102576, 5291378220, 7055170960, 10582756440, 21165512880]

約数ペア:

[(1, 21165512880), (2, 10582756440), (3, 7055170960), (4, 5291378220), (5, 4233102576), (6, 3527585480), (8, 2645689110), (10, 2116551288), (12, 1763792740), (15, 1411034192), (16, 1322844555), (20, 1058275644), (24, 881896370), (30, 705517096), (31, 682758480), (40, 529137822), (48, 440948185), (60, 352758548), (62, 341379240), (80, 264568911), (93, 227586160), (120, 176379274), (124, 170689620), (155, 136551696), (186, 113793080), (240, 88189637), (248, 85344810), (310, 68275848), (353, 59958960), (372, 56896540), (465, 45517232), (496, 42672405), (620, 34137924), (706, 29979480), (744, 28448270), (930, 22758616), (1059, 19986320), (1240, 17068962), (1412, 14989740), (1488, 14224135), (1765, 11991792), (1860, 11379308), (2118, 9993160), (2480, 8534481), (2824, 7494870), (3530, 5995896), (3720, 5689654), (4236, 4996580), (5295, 3997264), (5648, 3747435), (7060, 2997948), (7440, 2844827), (8059, 2626320), (8472, 2498290), (10590, 1998632), (10943, 1934160), (14120, 1498974), (16118, 1313160), (16944, 1249145), (21180, 999316), (21886, 967080), (24177, 875440), (28240, 749487), (32236, 656580), (32829, 644720), (40295, 525264), (42360, 499658), (43772, 483540), (48354, 437720), (54715, 386832), (64472, 328290), (65658, 322360), (80590, 262632), (84720, 249829), (87544, 241770), (96708, 218860), (109430, 193416), (120885, 175088), (128944, 164145), (131316, 161180)]