20199797605

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{249211}}^1$

素因数の和:249301

約数の個数: 32

約数和(自身を含む): 27632626560

約数和(自身を除く): 7432828955

約数列:

[1, 5, 13, 29, 43, 65, 145, 215, 377, 559, 1247, 1885, 2795, 6235, 16211, 81055, 249211, 1246055, 3239743, 7227119, 10716073, 16198715, 36135595, 53580365, 93952547, 139308949, 310766117, 469762735, 696544745, 1553830585, 4039959521, 20199797605]

約数ペア:

[(1, 20199797605), (5, 4039959521), (13, 1553830585), (29, 696544745), (43, 469762735), (65, 310766117), (145, 139308949), (215, 93952547), (377, 53580365), (559, 36135595), (1247, 16198715), (1885, 10716073), (2795, 7227119), (6235, 3239743), (16211, 1246055), (81055, 249211)]