19624840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9257}}^1$

素因数の和:9321

約数の個数: 32

約数和(自身を含む): 44993880

約数和(自身を除く): 25369040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 9257, 18514, 37028, 46285, 74056, 92570, 185140, 370280, 490621, 981242, 1962484, 2453105, 3924968, 4906210, 9812420, 19624840]

約数ペア:

[(1, 19624840), (2, 9812420), (4, 4906210), (5, 3924968), (8, 2453105), (10, 1962484), (20, 981242), (40, 490621), (53, 370280), (106, 185140), (212, 92570), (265, 74056), (424, 46285), (530, 37028), (1060, 18514), (2120, 9257)]