291244280

素因数分解:

$2^3\times 5^1\times {\mathrm{829}}^1\times {\mathrm{8783}}^1$

素因数の和:9623

約数の個数: 32

約数和(自身を含む): 656164800

約数和(自身を除く): 364920520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 829, 1658, 3316, 4145, 6632, 8290, 8783, 16580, 17566, 33160, 35132, 43915, 70264, 87830, 175660, 351320, 7281107, 14562214, 29124428, 36405535, 58248856, 72811070, 145622140, 291244280]

約数ペア:

[(1, 291244280), (2, 145622140), (4, 72811070), (5, 58248856), (8, 36405535), (10, 29124428), (20, 14562214), (40, 7281107), (829, 351320), (1658, 175660), (3316, 87830), (4145, 70264), (6632, 43915), (8290, 35132), (8783, 33160), (16580, 17566)]