20458906496

素因数分解:

$2^7\times 7^2\times {\mathrm{17}}^2\times {\mathrm{11287}}^1$

素因数の和:11349

約数の個数: 144

約数和(自身を含む): 50369821560

約数和(自身を除く): 29910915064

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 49, 56, 64, 68, 98, 112, 119, 128, 136, 196, 224, 238, 272, 289, 392, 448, 476, 544, 578, 784, 833, 896, 952, 1088, 1156, 1568, 1666, 1904, 2023, 2176, 2312, 3136, 3332, 3808, 4046, 4624, 6272, 6664, 7616, 8092, 9248, 11287, 13328, 14161, 15232, 16184, 18496, 22574, 26656, 28322, 32368, 36992, 45148, 53312, 56644, 64736, 79009, 90296, 106624, 113288, 129472, 158018, 180592, 191879, 226576, 258944, 316036, 361184, 383758, 453152, 553063, 632072, 722368, 767516, 906304, 1106126, 1264144, 1343153, 1444736, 1535032, 1812608, 2212252, 2528288, 2686306, 3070064, 3261943, 4424504, 5056576, 5372612, 6140128, 6523886, 8849008, 9402071, 10113152, 10745224, 12280256, 13047772, 17698016, 18804142, 21490448, 22833601, 24560512, 26095544, 35396032, 37608284, 42980896, 45667202, 52191088, 70792064, 75216568, 85961792, 91334404, 104382176, 150433136, 159835207, 171923584, 182668808, 208764352, 300866272, 319670414, 365337616, 417528704, 601732544, 639340828, 730675232, 1203465088, 1278681656, 1461350464, 2557363312, 2922700928, 5114726624, 10229453248, 20458906496]

約数ペア:

[(1, 20458906496), (2, 10229453248), (4, 5114726624), (7, 2922700928), (8, 2557363312), (14, 1461350464), (16, 1278681656), (17, 1203465088), (28, 730675232), (32, 639340828), (34, 601732544), (49, 417528704), (56, 365337616), (64, 319670414), (68, 300866272), (98, 208764352), (112, 182668808), (119, 171923584), (128, 159835207), (136, 150433136), (196, 104382176), (224, 91334404), (238, 85961792), (272, 75216568), (289, 70792064), (392, 52191088), (448, 45667202), (476, 42980896), (544, 37608284), (578, 35396032), (784, 26095544), (833, 24560512), (896, 22833601), (952, 21490448), (1088, 18804142), (1156, 17698016), (1568, 13047772), (1666, 12280256), (1904, 10745224), (2023, 10113152), (2176, 9402071), (2312, 8849008), (3136, 6523886), (3332, 6140128), (3808, 5372612), (4046, 5056576), (4624, 4424504), (6272, 3261943), (6664, 3070064), (7616, 2686306), (8092, 2528288), (9248, 2212252), (11287, 1812608), (13328, 1535032), (14161, 1444736), (15232, 1343153), (16184, 1264144), (18496, 1106126), (22574, 906304), (26656, 767516), (28322, 722368), (32368, 632072), (36992, 553063), (45148, 453152), (53312, 383758), (56644, 361184), (64736, 316036), (79009, 258944), (90296, 226576), (106624, 191879), (113288, 180592), (129472, 158018)]