19260880

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3391}}^1$

素因数の和:3475

約数の個数: 40

約数和(自身を含む): 45425664

約数和(自身を除く): 26164784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 3391, 5680, 6782, 13564, 16955, 27128, 33910, 54256, 67820, 135640, 240761, 271280, 481522, 963044, 1203805, 1926088, 2407610, 3852176, 4815220, 9630440, 19260880]

約数ペア:

[(1, 19260880), (2, 9630440), (4, 4815220), (5, 3852176), (8, 2407610), (10, 1926088), (16, 1203805), (20, 963044), (40, 481522), (71, 271280), (80, 240761), (142, 135640), (284, 67820), (355, 54256), (568, 33910), (710, 27128), (1136, 16955), (1420, 13564), (2840, 6782), (3391, 5680)]