20001605525

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{140683}}^1$

素因数の和:140762

約数の個数: 36

約数和(自身を含む): 27841926336

約数和(自身を除く): 7840320811

約数列:

[1, 5, 11, 25, 47, 55, 121, 235, 275, 517, 605, 1175, 2585, 3025, 5687, 12925, 28435, 140683, 142175, 703415, 1547513, 3517075, 6612101, 7737565, 17022643, 33060505, 38687825, 72733111, 85113215, 165302525, 363665555, 425566075, 800064221, 1818327775, 4000321105, 20001605525]

約数ペア:

[(1, 20001605525), (5, 4000321105), (11, 1818327775), (25, 800064221), (47, 425566075), (55, 363665555), (121, 165302525), (235, 85113215), (275, 72733111), (517, 38687825), (605, 33060505), (1175, 17022643), (2585, 7737565), (3025, 6612101), (5687, 3517075), (12925, 1547513), (28435, 703415), (140683, 142175)]