20899990458

素因数分解:

$2^1\times 3^2\times {\mathrm{127}}^2\times {\mathrm{193}}^1\times {\mathrm{373}}^1$

素因数の和:828

約数の個数: 72

約数和(自身を含む): 46002172788

約数和(自身を除く): 25102182330

約数列:

[1, 2, 3, 6, 9, 18, 127, 193, 254, 373, 381, 386, 579, 746, 762, 1119, 1143, 1158, 1737, 2238, 2286, 3357, 3474, 6714, 16129, 24511, 32258, 47371, 48387, 49022, 71989, 73533, 94742, 96774, 142113, 143978, 145161, 147066, 215967, 220599, 284226, 290322, 426339, 431934, 441198, 647901, 852678, 1295802, 3112897, 6016117, 6225794, 9142603, 9338691, 12032234, 18048351, 18285206, 18677382, 27427809, 28016073, 36096702, 54145053, 54855618, 56032146, 82283427, 108290106, 164566854, 1161110581, 2322221162, 3483331743, 6966663486, 10449995229, 20899990458]

約数ペア:

[(1, 20899990458), (2, 10449995229), (3, 6966663486), (6, 3483331743), (9, 2322221162), (18, 1161110581), (127, 164566854), (193, 108290106), (254, 82283427), (373, 56032146), (381, 54855618), (386, 54145053), (579, 36096702), (746, 28016073), (762, 27427809), (1119, 18677382), (1143, 18285206), (1158, 18048351), (1737, 12032234), (2238, 9338691), (2286, 9142603), (3357, 6225794), (3474, 6016117), (6714, 3112897), (16129, 1295802), (24511, 852678), (32258, 647901), (47371, 441198), (48387, 431934), (49022, 426339), (71989, 290322), (73533, 284226), (94742, 220599), (96774, 215967), (142113, 147066), (143978, 145161)]