201639848840

素因数分解:

$2^3\times 5^1\times {\mathrm{10391}}^1\times {\mathrm{485131}}^1$

素因数の和:495533

約数の個数: 32

約数和(自身を含む): 453734256960

約数和(自身を除く): 252094408120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10391, 20782, 41564, 51955, 83128, 103910, 207820, 415640, 485131, 970262, 1940524, 2425655, 3881048, 4851310, 9702620, 19405240, 5040996221, 10081992442, 20163984884, 25204981105, 40327969768, 50409962210, 100819924420, 201639848840]

約数ペア:

[(1, 201639848840), (2, 100819924420), (4, 50409962210), (5, 40327969768), (8, 25204981105), (10, 20163984884), (20, 10081992442), (40, 5040996221), (10391, 19405240), (20782, 9702620), (41564, 4851310), (51955, 3881048), (83128, 2425655), (103910, 1940524), (207820, 970262), (415640, 485131)]