256285988

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^2\times {\mathrm{2039}}^1$

素因数の和:2184

約数の個数: 36

約数和(自身を含む): 520591680

約数和(自身を除く): 264305692

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 469, 938, 1876, 2039, 4078, 4489, 8156, 8978, 14273, 17956, 28546, 31423, 57092, 62846, 125692, 136613, 273226, 546452, 956291, 1912582, 3825164, 9153071, 18306142, 36612284, 64071497, 128142994, 256285988]

約数ペア:

[(1, 256285988), (2, 128142994), (4, 64071497), (7, 36612284), (14, 18306142), (28, 9153071), (67, 3825164), (134, 1912582), (268, 956291), (469, 546452), (938, 273226), (1876, 136613), (2039, 125692), (4078, 62846), (4489, 57092), (8156, 31423), (8978, 28546), (14273, 17956)]