399121448

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{238709}}^1$

素因数の和:238745

約数の個数: 32

約数和(自身を含む): 859356000

約数和(自身を除く): 460234552

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 238709, 477418, 954836, 1909672, 2625799, 4535471, 5251598, 9070942, 10503196, 18141884, 21006392, 36283768, 49890181, 99780362, 199560724, 399121448]

約数ペア:

[(1, 399121448), (2, 199560724), (4, 99780362), (8, 49890181), (11, 36283768), (19, 21006392), (22, 18141884), (38, 10503196), (44, 9070942), (76, 5251598), (88, 4535471), (152, 2625799), (209, 1909672), (418, 954836), (836, 477418), (1672, 238709)]