20131038025

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^2\times {\mathrm{43}}^1\times {\mathrm{3181}}^1$

素因数の和:3299

約数の個数: 72

約数和(自身を含む): 30242848064

約数和(自身を除く): 10111810039

約数列:

[1, 5, 7, 25, 29, 35, 43, 145, 175, 203, 215, 301, 725, 841, 1015, 1075, 1247, 1505, 3181, 4205, 5075, 5887, 6235, 7525, 8729, 15905, 21025, 22267, 29435, 31175, 36163, 43645, 79525, 92249, 111335, 136783, 147175, 180815, 218225, 253141, 461245, 556675, 645743, 683915, 904075, 957481, 1265705, 2306225, 2675221, 3228715, 3419575, 3966707, 4787405, 6328525, 13376105, 16143575, 18726547, 19833535, 23937025, 27766949, 66880525, 93632735, 99167675, 115034503, 138834745, 468163675, 575172515, 694173725, 805241521, 2875862575, 4026207605, 20131038025]

約数ペア:

[(1, 20131038025), (5, 4026207605), (7, 2875862575), (25, 805241521), (29, 694173725), (35, 575172515), (43, 468163675), (145, 138834745), (175, 115034503), (203, 99167675), (215, 93632735), (301, 66880525), (725, 27766949), (841, 23937025), (1015, 19833535), (1075, 18726547), (1247, 16143575), (1505, 13376105), (3181, 6328525), (4205, 4787405), (5075, 3966707), (5887, 3419575), (6235, 3228715), (7525, 2675221), (8729, 2306225), (15905, 1265705), (21025, 957481), (22267, 904075), (29435, 683915), (31175, 645743), (36163, 556675), (43645, 461245), (79525, 253141), (92249, 218225), (111335, 180815), (136783, 147175)]