31315696

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1979}}^1$

素因数の和:2053

約数の個数: 40

約数和(自身を含む): 64817280

約数和(自身を除く): 33501584

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 86, 92, 172, 184, 344, 368, 688, 989, 1978, 1979, 3956, 3958, 7912, 7916, 15824, 15832, 31664, 45517, 85097, 91034, 170194, 182068, 340388, 364136, 680776, 728272, 1361552, 1957231, 3914462, 7828924, 15657848, 31315696]

約数ペア:

[(1, 31315696), (2, 15657848), (4, 7828924), (8, 3914462), (16, 1957231), (23, 1361552), (43, 728272), (46, 680776), (86, 364136), (92, 340388), (172, 182068), (184, 170194), (344, 91034), (368, 85097), (688, 45517), (989, 31664), (1978, 15832), (1979, 15824), (3956, 7916), (3958, 7912)]