320839520

素因数分解:

$2^5\times 5^1\times {\mathrm{397}}^1\times {\mathrm{5051}}^1$

素因数の和:5463

約数の個数: 48

約数和(自身を含む): 760043088

約数和(自身を除く): 439203568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 397, 794, 1588, 1985, 3176, 3970, 5051, 6352, 7940, 10102, 12704, 15880, 20204, 25255, 31760, 40408, 50510, 63520, 80816, 101020, 161632, 202040, 404080, 808160, 2005247, 4010494, 8020988, 10026235, 16041976, 20052470, 32083952, 40104940, 64167904, 80209880, 160419760, 320839520]

約数ペア:

[(1, 320839520), (2, 160419760), (4, 80209880), (5, 64167904), (8, 40104940), (10, 32083952), (16, 20052470), (20, 16041976), (32, 10026235), (40, 8020988), (80, 4010494), (160, 2005247), (397, 808160), (794, 404080), (1588, 202040), (1985, 161632), (3176, 101020), (3970, 80816), (5051, 63520), (6352, 50510), (7940, 40408), (10102, 31760), (12704, 25255), (15880, 20204)]