641569774

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{196439}}^1$

素因数の和:196535

約数の個数: 16

約数和(自身を含む): 1018344960

約数和(自身を除く): 376775186

約数列:

[1, 2, 23, 46, 71, 142, 1633, 3266, 196439, 392878, 4518097, 9036194, 13947169, 27894338, 320784887, 641569774]

約数ペア:

[(1, 641569774), (2, 320784887), (23, 27894338), (46, 13947169), (71, 9036194), (142, 4518097), (1633, 392878), (3266, 196439)]