780775520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{697121}}^1$

素因数の和:697143

約数の個数: 48

約数和(自身を含む): 2108096928

約数和(自身を除く): 1327321408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 697121, 1394242, 2788484, 3485605, 4879847, 5576968, 6971210, 9759694, 11153936, 13942420, 19519388, 22307872, 24399235, 27884840, 39038776, 48798470, 55769680, 78077552, 97596940, 111539360, 156155104, 195193880, 390387760, 780775520]

約数ペア:

[(1, 780775520), (2, 390387760), (4, 195193880), (5, 156155104), (7, 111539360), (8, 97596940), (10, 78077552), (14, 55769680), (16, 48798470), (20, 39038776), (28, 27884840), (32, 24399235), (35, 22307872), (40, 19519388), (56, 13942420), (70, 11153936), (80, 9759694), (112, 6971210), (140, 5576968), (160, 4879847), (224, 3485605), (280, 2788484), (560, 1394242), (1120, 697121)]