209280965

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{1439}}^1$

素因数の和:1549

約数の個数: 32

約数和(自身を含む): 279936000

約数和(自身を除く): 70655035

約数列:

[1, 5, 17, 29, 59, 85, 145, 295, 493, 1003, 1439, 1711, 2465, 5015, 7195, 8555, 24463, 29087, 41731, 84901, 122315, 145435, 208655, 424505, 709427, 1443317, 2462129, 3547135, 7216585, 12310645, 41856193, 209280965]

約数ペア:

[(1, 209280965), (5, 41856193), (17, 12310645), (29, 7216585), (59, 3547135), (85, 2462129), (145, 1443317), (295, 709427), (493, 424505), (1003, 208655), (1439, 145435), (1711, 122315), (2465, 84901), (5015, 41731), (7195, 29087), (8555, 24463)]