20009774945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{541}}^1\times {\mathrm{18919}}^1$

素因数の和:19505

約数の個数: 32

約数和(自身を含む): 26580026880

約数和(自身を除く): 6570251935

約数列:

[1, 5, 17, 23, 85, 115, 391, 541, 1955, 2705, 9197, 12443, 18919, 45985, 62215, 94595, 211531, 321623, 435137, 1057655, 1608115, 2175685, 7397329, 10235179, 36986645, 51175895, 173998043, 235409117, 869990215, 1177045585, 4001954989, 20009774945]

約数ペア:

[(1, 20009774945), (5, 4001954989), (17, 1177045585), (23, 869990215), (85, 235409117), (115, 173998043), (391, 51175895), (541, 36986645), (1955, 10235179), (2705, 7397329), (9197, 2175685), (12443, 1608115), (18919, 1057655), (45985, 435137), (62215, 321623), (94595, 211531)]