80731280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144163}}^1$

素因数の和:144183

約数の個数: 40

約数和(自身を含む): 214516032

約数和(自身を除く): 133784752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144163, 288326, 576652, 720815, 1009141, 1153304, 1441630, 2018282, 2306608, 2883260, 4036564, 5045705, 5766520, 8073128, 10091410, 11533040, 16146256, 20182820, 40365640, 80731280]

約数ペア:

[(1, 80731280), (2, 40365640), (4, 20182820), (5, 16146256), (7, 11533040), (8, 10091410), (10, 8073128), (14, 5766520), (16, 5045705), (20, 4036564), (28, 2883260), (35, 2306608), (40, 2018282), (56, 1441630), (70, 1153304), (80, 1009141), (112, 720815), (140, 576652), (280, 288326), (560, 144163)]