21821542280

素因数分解:

$2^3\times 5^1\times {\mathrm{12391}}^1\times {\mathrm{44027}}^1$

素因数の和:56429

約数の個数: 32

約数和(自身を含む): 49103547840

約数和(自身を除く): 27282005560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 12391, 24782, 44027, 49564, 61955, 88054, 99128, 123910, 176108, 220135, 247820, 352216, 440270, 495640, 880540, 1761080, 545538557, 1091077114, 2182154228, 2727692785, 4364308456, 5455385570, 10910771140, 21821542280]

約数ペア:

[(1, 21821542280), (2, 10910771140), (4, 5455385570), (5, 4364308456), (8, 2727692785), (10, 2182154228), (20, 1091077114), (40, 545538557), (12391, 1761080), (24782, 880540), (44027, 495640), (49564, 440270), (61955, 352216), (88054, 247820), (99128, 220135), (123910, 176108)]