1984328894920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{557395757}}^1$

素因数の和:557395857

約数の個数: 32

約数和(自身を含む): 4514905639800

約数和(自身を除く): 2530576744880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 557395757, 1114791514, 2229583028, 2786978785, 4459166056, 5573957570, 11147915140, 22295830280, 49608222373, 99216444746, 198432889492, 248041111865, 396865778984, 496082223730, 992164447460, 1984328894920]

約数ペア:

[(1, 1984328894920), (2, 992164447460), (4, 496082223730), (5, 396865778984), (8, 248041111865), (10, 198432889492), (20, 99216444746), (40, 49608222373), (89, 22295830280), (178, 11147915140), (356, 5573957570), (445, 4459166056), (712, 2786978785), (890, 2229583028), (1780, 1114791514), (3560, 557395757)]