256487238

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{4723}}^1$

素因数の和:5169

約数の個数: 48

約数和(自身を含む): 636719616

約数和(自身を除く): 380232378

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 431, 862, 1293, 2586, 3017, 3879, 4723, 6034, 7758, 9051, 9446, 14169, 18102, 27153, 28338, 33061, 42507, 54306, 66122, 85014, 99183, 198366, 297549, 595098, 2035613, 4071226, 6106839, 12213678, 14249291, 18320517, 28498582, 36641034, 42747873, 85495746, 128243619, 256487238]

約数ペア:

[(1, 256487238), (2, 128243619), (3, 85495746), (6, 42747873), (7, 36641034), (9, 28498582), (14, 18320517), (18, 14249291), (21, 12213678), (42, 6106839), (63, 4071226), (126, 2035613), (431, 595098), (862, 297549), (1293, 198366), (2586, 99183), (3017, 85014), (3879, 66122), (4723, 54306), (6034, 42507), (7758, 33061), (9051, 28338), (9446, 27153), (14169, 18102)]