19844840

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2741}}^1$

素因数の和:2933

約数の個数: 32

約数和(自身を含む): 44913960

約数和(自身を除く): 25069120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 2741, 3620, 5482, 7240, 10964, 13705, 21928, 27410, 54820, 109640, 496121, 992242, 1984484, 2480605, 3968968, 4961210, 9922420, 19844840]

約数ペア:

[(1, 19844840), (2, 9922420), (4, 4961210), (5, 3968968), (8, 2480605), (10, 1984484), (20, 992242), (40, 496121), (181, 109640), (362, 54820), (724, 27410), (905, 21928), (1448, 13705), (1810, 10964), (2741, 7240), (3620, 5482)]