9778840840

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1866191}}^1$

素因数の和:1866333

約数の個数: 32

約数和(自身を含む): 22170360960

約数和(自身を除く): 12391520120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 1866191, 3732382, 7464764, 9330955, 14929528, 18661910, 37323820, 74647640, 244471021, 488942042, 977884084, 1222355105, 1955768168, 2444710210, 4889420420, 9778840840]

約数ペア:

[(1, 9778840840), (2, 4889420420), (4, 2444710210), (5, 1955768168), (8, 1222355105), (10, 977884084), (20, 488942042), (40, 244471021), (131, 74647640), (262, 37323820), (524, 18661910), (655, 14929528), (1048, 9330955), (1310, 7464764), (2620, 3732382), (5240, 1866191)]