20411904

素因数分解:

$2^9\times 3^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:255

約数の個数: 80

約数和(自身を含む): 55340208

約数和(自身を除く): 34928304

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 97, 128, 137, 192, 194, 256, 274, 291, 384, 388, 411, 512, 548, 582, 768, 776, 822, 1096, 1164, 1536, 1552, 1644, 2192, 2328, 3104, 3288, 4384, 4656, 6208, 6576, 8768, 9312, 12416, 13152, 13289, 17536, 18624, 24832, 26304, 26578, 35072, 37248, 39867, 49664, 52608, 53156, 70144, 74496, 79734, 105216, 106312, 148992, 159468, 210432, 212624, 318936, 425248, 637872, 850496, 1275744, 1700992, 2551488, 3401984, 5102976, 6803968, 10205952, 20411904]

約数ペア:

[(1, 20411904), (2, 10205952), (3, 6803968), (4, 5102976), (6, 3401984), (8, 2551488), (12, 1700992), (16, 1275744), (24, 850496), (32, 637872), (48, 425248), (64, 318936), (96, 212624), (97, 210432), (128, 159468), (137, 148992), (192, 106312), (194, 105216), (256, 79734), (274, 74496), (291, 70144), (384, 53156), (388, 52608), (411, 49664), (512, 39867), (548, 37248), (582, 35072), (768, 26578), (776, 26304), (822, 24832), (1096, 18624), (1164, 17536), (1536, 13289), (1552, 13152), (1644, 12416), (2192, 9312), (2328, 8768), (3104, 6576), (3288, 6208), (4384, 4656)]