208081610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:627

約数の個数: 64

約数和(自身を含む): 425779200

約数和(自身を除く): 217697590

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 110, 139, 155, 278, 310, 341, 439, 682, 695, 878, 1390, 1529, 1705, 2195, 3058, 3410, 4309, 4390, 4829, 7645, 8618, 9658, 13609, 15290, 21545, 24145, 27218, 43090, 47399, 48290, 61021, 68045, 94798, 122042, 136090, 149699, 236995, 299398, 305105, 473990, 610210, 671231, 748495, 1342462, 1496990, 1891651, 3356155, 3783302, 6712310, 9458255, 18916510, 20808161, 41616322, 104040805, 208081610]

約数ペア:

[(1, 208081610), (2, 104040805), (5, 41616322), (10, 20808161), (11, 18916510), (22, 9458255), (31, 6712310), (55, 3783302), (62, 3356155), (110, 1891651), (139, 1496990), (155, 1342462), (278, 748495), (310, 671231), (341, 610210), (439, 473990), (682, 305105), (695, 299398), (878, 236995), (1390, 149699), (1529, 136090), (1705, 122042), (2195, 94798), (3058, 68045), (3410, 61021), (4309, 48290), (4390, 47399), (4829, 43090), (7645, 27218), (8618, 24145), (9658, 21545), (13609, 15290)]