399452280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{3359}}^1$

素因数の和:4364

約数の個数: 64

約数和(自身を含む): 1199923200

約数和(自身を除く): 800470920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 991, 1982, 2973, 3359, 3964, 4955, 5946, 6718, 7928, 9910, 10077, 11892, 13436, 14865, 16795, 19820, 20154, 23784, 26872, 29730, 33590, 39640, 40308, 50385, 59460, 67180, 80616, 100770, 118920, 134360, 201540, 403080, 3328769, 6657538, 9986307, 13315076, 16643845, 19972614, 26630152, 33287690, 39945228, 49931535, 66575380, 79890456, 99863070, 133150760, 199726140, 399452280]

約数ペア:

[(1, 399452280), (2, 199726140), (3, 133150760), (4, 99863070), (5, 79890456), (6, 66575380), (8, 49931535), (10, 39945228), (12, 33287690), (15, 26630152), (20, 19972614), (24, 16643845), (30, 13315076), (40, 9986307), (60, 6657538), (120, 3328769), (991, 403080), (1982, 201540), (2973, 134360), (3359, 118920), (3964, 100770), (4955, 80616), (5946, 67180), (6718, 59460), (7928, 50385), (9910, 40308), (10077, 39640), (11892, 33590), (13436, 29730), (14865, 26872), (16795, 23784), (19820, 20154)]