102512900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{20921}}^1$

素因数の和:20949

約数の個数: 54

約数和(自身を含む): 258784218

約数和(自身を除く): 156271318

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 20921, 41842, 83684, 104605, 146447, 209210, 292894, 418420, 523025, 585788, 732235, 1025129, 1046050, 1464470, 2050258, 2092100, 2928940, 3661175, 4100516, 5125645, 7322350, 10251290, 14644700, 20502580, 25628225, 51256450, 102512900]

約数ペア:

[(1, 102512900), (2, 51256450), (4, 25628225), (5, 20502580), (7, 14644700), (10, 10251290), (14, 7322350), (20, 5125645), (25, 4100516), (28, 3661175), (35, 2928940), (49, 2092100), (50, 2050258), (70, 1464470), (98, 1046050), (100, 1025129), (140, 732235), (175, 585788), (196, 523025), (245, 418420), (350, 292894), (490, 209210), (700, 146447), (980, 104605), (1225, 83684), (2450, 41842), (4900, 20921)]