18443776

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:211

約数の個数: 80

約数和(自身を含む): 42278544

約数和(自身を除く): 23834768

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 128, 136, 163, 208, 221, 256, 272, 326, 416, 442, 512, 544, 652, 832, 884, 1088, 1304, 1664, 1768, 2119, 2176, 2608, 2771, 3328, 3536, 4238, 4352, 5216, 5542, 6656, 7072, 8476, 8704, 10432, 11084, 14144, 16952, 20864, 22168, 28288, 33904, 36023, 41728, 44336, 56576, 67808, 72046, 83456, 88672, 113152, 135616, 144092, 177344, 271232, 288184, 354688, 542464, 576368, 709376, 1084928, 1152736, 1418752, 2305472, 4610944, 9221888, 18443776]

約数ペア:

[(1, 18443776), (2, 9221888), (4, 4610944), (8, 2305472), (13, 1418752), (16, 1152736), (17, 1084928), (26, 709376), (32, 576368), (34, 542464), (52, 354688), (64, 288184), (68, 271232), (104, 177344), (128, 144092), (136, 135616), (163, 113152), (208, 88672), (221, 83456), (256, 72046), (272, 67808), (326, 56576), (416, 44336), (442, 41728), (512, 36023), (544, 33904), (652, 28288), (832, 22168), (884, 20864), (1088, 16952), (1304, 14144), (1664, 11084), (1768, 10432), (2119, 8704), (2176, 8476), (2608, 7072), (2771, 6656), (3328, 5542), (3536, 5216), (4238, 4352)]