201798440

素因数分解:

$2^3\times 5^1\times {\mathrm{1973}}^1\times {\mathrm{2557}}^1$

素因数の和:4541

約数の個数: 32

約数和(自身を含む): 454454280

約数和(自身を除く): 252655840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1973, 2557, 3946, 5114, 7892, 9865, 10228, 12785, 15784, 19730, 20456, 25570, 39460, 51140, 78920, 102280, 5044961, 10089922, 20179844, 25224805, 40359688, 50449610, 100899220, 201798440]

約数ペア:

[(1, 201798440), (2, 100899220), (4, 50449610), (5, 40359688), (8, 25224805), (10, 20179844), (20, 10089922), (40, 5044961), (1973, 102280), (2557, 78920), (3946, 51140), (5114, 39460), (7892, 25570), (9865, 20456), (10228, 19730), (12785, 15784)]