399408045104

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{351591589}}^1$

素因数の和:351591668

約数の個数: 20

約数和(自身を含む): 784752428880

約数和(自身を除く): 385344383776

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 351591589, 703183178, 1406366356, 2812732712, 5625465424, 24963002819, 49926005638, 99852011276, 199704022552, 399408045104]

約数ペア:

[(1, 399408045104), (2, 199704022552), (4, 99852011276), (8, 49926005638), (16, 24963002819), (71, 5625465424), (142, 2812732712), (284, 1406366356), (568, 703183178), (1136, 351591589)]