991303810

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{69761}}^1$

素因数の和:69811

約数の個数: 48

約数和(自身を含む): 2147274360

約数和(自身を除く): 1155970550

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 49, 58, 70, 98, 145, 203, 245, 290, 406, 490, 1015, 1421, 2030, 2842, 7105, 14210, 69761, 139522, 348805, 488327, 697610, 976654, 2023069, 2441635, 3418289, 4046138, 4883270, 6836578, 10115345, 14161483, 17091445, 20230690, 28322966, 34182890, 70807415, 99130381, 141614830, 198260762, 495651905, 991303810]

約数ペア:

[(1, 991303810), (2, 495651905), (5, 198260762), (7, 141614830), (10, 99130381), (14, 70807415), (29, 34182890), (35, 28322966), (49, 20230690), (58, 17091445), (70, 14161483), (98, 10115345), (145, 6836578), (203, 4883270), (245, 4046138), (290, 3418289), (406, 2441635), (490, 2023069), (1015, 976654), (1421, 697610), (2030, 488327), (2842, 348805), (7105, 139522), (14210, 69761)]