20471656

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 42900480

約数和(自身を除く): 22428824

約数列:

[1, 2, 4, 8, 23, 31, 37, 46, 62, 74, 92, 97, 124, 148, 184, 194, 248, 296, 388, 713, 776, 851, 1147, 1426, 1702, 2231, 2294, 2852, 3007, 3404, 3589, 4462, 4588, 5704, 6014, 6808, 7178, 8924, 9176, 12028, 14356, 17848, 24056, 26381, 28712, 52762, 69161, 82547, 105524, 111259, 138322, 165094, 211048, 222518, 276644, 330188, 445036, 553288, 660376, 890072, 2558957, 5117914, 10235828, 20471656]

約数ペア:

[(1, 20471656), (2, 10235828), (4, 5117914), (8, 2558957), (23, 890072), (31, 660376), (37, 553288), (46, 445036), (62, 330188), (74, 276644), (92, 222518), (97, 211048), (124, 165094), (148, 138322), (184, 111259), (194, 105524), (248, 82547), (296, 69161), (388, 52762), (713, 28712), (776, 26381), (851, 24056), (1147, 17848), (1426, 14356), (1702, 12028), (2231, 9176), (2294, 8924), (2852, 7178), (3007, 6808), (3404, 6014), (3589, 5704), (4462, 4588)]