20133637520

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{494441}}^1$

素因数の和:494963

約数の個数: 40

約数和(自身を含む): 46902768120

約数和(自身を除く): 26769130600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 1018, 2036, 2545, 4072, 5090, 8144, 10180, 20360, 40720, 494441, 988882, 1977764, 2472205, 3955528, 4944410, 7911056, 9888820, 19777640, 39555280, 251670469, 503340938, 1006681876, 1258352345, 2013363752, 2516704690, 4026727504, 5033409380, 10066818760, 20133637520]

約数ペア:

[(1, 20133637520), (2, 10066818760), (4, 5033409380), (5, 4026727504), (8, 2516704690), (10, 2013363752), (16, 1258352345), (20, 1006681876), (40, 503340938), (80, 251670469), (509, 39555280), (1018, 19777640), (2036, 9888820), (2545, 7911056), (4072, 4944410), (5090, 3955528), (8144, 2472205), (10180, 1977764), (20360, 988882), (40720, 494441)]