77670880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{9907}}^1$

素因数の和:9936

約数の個数: 72

約数和(自身を含む): 213477768

約数和(自身を除く): 135806888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 9907, 19814, 39628, 49535, 69349, 79256, 99070, 138698, 158512, 198140, 277396, 317024, 346745, 396280, 485443, 554792, 693490, 792560, 970886, 1109584, 1386980, 1585120, 1941772, 2219168, 2427215, 2773960, 3883544, 4854430, 5547920, 7767088, 9708860, 11095840, 15534176, 19417720, 38835440, 77670880]

約数ペア:

[(1, 77670880), (2, 38835440), (4, 19417720), (5, 15534176), (7, 11095840), (8, 9708860), (10, 7767088), (14, 5547920), (16, 4854430), (20, 3883544), (28, 2773960), (32, 2427215), (35, 2219168), (40, 1941772), (49, 1585120), (56, 1386980), (70, 1109584), (80, 970886), (98, 792560), (112, 693490), (140, 554792), (160, 485443), (196, 396280), (224, 346745), (245, 317024), (280, 277396), (392, 198140), (490, 158512), (560, 138698), (784, 99070), (980, 79256), (1120, 69349), (1568, 49535), (1960, 39628), (3920, 19814), (7840, 9907)]