20121221568

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{1723}}^1\times {\mathrm{8689}}^1$

素因数の和:10434

約数の個数: 112

約数和(自身を含む): 60885059840

約数和(自身を除く): 40763838272

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 168, 192, 224, 336, 448, 672, 1344, 1723, 3446, 5169, 6892, 8689, 10338, 12061, 13784, 17378, 20676, 24122, 26067, 27568, 34756, 36183, 41352, 48244, 52134, 55136, 60823, 69512, 72366, 82704, 96488, 104268, 110272, 121646, 139024, 144732, 165408, 182469, 192976, 208536, 243292, 278048, 289464, 330816, 364938, 385952, 417072, 486584, 556096, 578928, 729876, 771904, 834144, 973168, 1157856, 1459752, 1668288, 1946336, 2315712, 2919504, 3892672, 5839008, 11678016, 14971147, 29942294, 44913441, 59884588, 89826882, 104798029, 119769176, 179653764, 209596058, 239538352, 314394087, 359307528, 419192116, 479076704, 628788174, 718615056, 838384232, 958153408, 1257576348, 1437230112, 1676768464, 2515152696, 2874460224, 3353536928, 5030305392, 6707073856, 10060610784, 20121221568]

約数ペア:

[(1, 20121221568), (2, 10060610784), (3, 6707073856), (4, 5030305392), (6, 3353536928), (7, 2874460224), (8, 2515152696), (12, 1676768464), (14, 1437230112), (16, 1257576348), (21, 958153408), (24, 838384232), (28, 718615056), (32, 628788174), (42, 479076704), (48, 419192116), (56, 359307528), (64, 314394087), (84, 239538352), (96, 209596058), (112, 179653764), (168, 119769176), (192, 104798029), (224, 89826882), (336, 59884588), (448, 44913441), (672, 29942294), (1344, 14971147), (1723, 11678016), (3446, 5839008), (5169, 3892672), (6892, 2919504), (8689, 2315712), (10338, 1946336), (12061, 1668288), (13784, 1459752), (17378, 1157856), (20676, 973168), (24122, 834144), (26067, 771904), (27568, 729876), (34756, 578928), (36183, 556096), (41352, 486584), (48244, 417072), (52134, 385952), (55136, 364938), (60823, 330816), (69512, 289464), (72366, 278048), (82704, 243292), (96488, 208536), (104268, 192976), (110272, 182469), (121646, 165408), (139024, 144732)]