19871840

素因数分解:

$2^5\times 5^1\times {\mathrm{124199}}^1$

素因数の和:124214

約数の個数: 24

約数和(自身を含む): 46947600

約数和(自身を除く): 27075760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 124199, 248398, 496796, 620995, 993592, 1241990, 1987184, 2483980, 3974368, 4967960, 9935920, 19871840]

約数ペア:

[(1, 19871840), (2, 9935920), (4, 4967960), (5, 3974368), (8, 2483980), (10, 1987184), (16, 1241990), (20, 993592), (32, 620995), (40, 496796), (80, 248398), (160, 124199)]