19995420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2207}}^1$

素因数の和:2370

約数の個数: 48

約数和(自身を含む): 56383488

約数和(自身を除く): 36388068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 151, 302, 453, 604, 755, 906, 1510, 1812, 2207, 2265, 3020, 4414, 4530, 6621, 8828, 9060, 11035, 13242, 22070, 26484, 33105, 44140, 66210, 132420, 333257, 666514, 999771, 1333028, 1666285, 1999542, 3332570, 3999084, 4998855, 6665140, 9997710, 19995420]

約数ペア:

[(1, 19995420), (2, 9997710), (3, 6665140), (4, 4998855), (5, 3999084), (6, 3332570), (10, 1999542), (12, 1666285), (15, 1333028), (20, 999771), (30, 666514), (60, 333257), (151, 132420), (302, 66210), (453, 44140), (604, 33105), (755, 26484), (906, 22070), (1510, 13242), (1812, 11035), (2207, 9060), (2265, 8828), (3020, 6621), (4414, 4530)]