20131990105

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{307}}^1\times {\mathrm{1613}}^1$

素因数の和:2145

約数の個数: 32

約数和(自身を含む): 24911276544

約数和(自身を除く): 4779286439

約数列:

[1, 5, 47, 173, 235, 307, 865, 1535, 1613, 8065, 8131, 14429, 40655, 53111, 72145, 75811, 265555, 279049, 379055, 495191, 1395245, 2475955, 2496217, 12481085, 13115303, 23273977, 65576515, 85668043, 116369885, 428340215, 4026398021, 20131990105]

約数ペア:

[(1, 20131990105), (5, 4026398021), (47, 428340215), (173, 116369885), (235, 85668043), (307, 65576515), (865, 23273977), (1535, 13115303), (1613, 12481085), (8065, 2496217), (8131, 2475955), (14429, 1395245), (40655, 495191), (53111, 379055), (72145, 279049), (75811, 265555)]