1981007760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1\times {\mathrm{353}}^1$

素因数の和:785

約数の個数: 160

約数和(自身を含む): 6268348800

約数和(自身を除く): 4287341040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 67, 80, 120, 134, 201, 240, 268, 335, 349, 353, 402, 536, 670, 698, 706, 804, 1005, 1047, 1059, 1072, 1340, 1396, 1412, 1608, 1745, 1765, 2010, 2094, 2118, 2680, 2792, 2824, 3216, 3490, 3530, 4020, 4188, 4236, 5235, 5295, 5360, 5584, 5648, 6980, 7060, 8040, 8376, 8472, 10470, 10590, 13960, 14120, 16080, 16752, 16944, 20940, 21180, 23383, 23651, 27920, 28240, 41880, 42360, 46766, 47302, 70149, 70953, 83760, 84720, 93532, 94604, 116915, 118255, 123197, 140298, 141906, 187064, 189208, 233830, 236510, 246394, 280596, 283812, 350745, 354765, 369591, 374128, 378416, 467660, 473020, 492788, 561192, 567624, 615985, 701490, 709530, 739182, 935320, 946040, 985576, 1122384, 1135248, 1231970, 1402980, 1419060, 1478364, 1847955, 1870640, 1892080, 1971152, 2463940, 2805960, 2838120, 2956728, 3695910, 4927880, 5611920, 5676240, 5913456, 7391820, 8254199, 9855760, 14783640, 16508398, 24762597, 29567280, 33016796, 41270995, 49525194, 66033592, 82541990, 99050388, 123812985, 132067184, 165083980, 198100776, 247625970, 330167960, 396201552, 495251940, 660335920, 990503880, 1981007760]

約数ペア:

[(1, 1981007760), (2, 990503880), (3, 660335920), (4, 495251940), (5, 396201552), (6, 330167960), (8, 247625970), (10, 198100776), (12, 165083980), (15, 132067184), (16, 123812985), (20, 99050388), (24, 82541990), (30, 66033592), (40, 49525194), (48, 41270995), (60, 33016796), (67, 29567280), (80, 24762597), (120, 16508398), (134, 14783640), (201, 9855760), (240, 8254199), (268, 7391820), (335, 5913456), (349, 5676240), (353, 5611920), (402, 4927880), (536, 3695910), (670, 2956728), (698, 2838120), (706, 2805960), (804, 2463940), (1005, 1971152), (1047, 1892080), (1059, 1870640), (1072, 1847955), (1340, 1478364), (1396, 1419060), (1412, 1402980), (1608, 1231970), (1745, 1135248), (1765, 1122384), (2010, 985576), (2094, 946040), (2118, 935320), (2680, 739182), (2792, 709530), (2824, 701490), (3216, 615985), (3490, 567624), (3530, 561192), (4020, 492788), (4188, 473020), (4236, 467660), (5235, 378416), (5295, 374128), (5360, 369591), (5584, 354765), (5648, 350745), (6980, 283812), (7060, 280596), (8040, 246394), (8376, 236510), (8472, 233830), (10470, 189208), (10590, 187064), (13960, 141906), (14120, 140298), (16080, 123197), (16752, 118255), (16944, 116915), (20940, 94604), (21180, 93532), (23383, 84720), (23651, 83760), (27920, 70953), (28240, 70149), (41880, 47302), (42360, 46766)]