20176774280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38801489}}^1$

素因数の和:38801513

約数の個数: 32

約数和(自身を含む): 48889877400

約数和(自身を除く): 28713103120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38801489, 77602978, 155205956, 194007445, 310411912, 388014890, 504419357, 776029780, 1008838714, 1552059560, 2017677428, 2522096785, 4035354856, 5044193570, 10088387140, 20176774280]

約数ペア:

[(1, 20176774280), (2, 10088387140), (4, 5044193570), (5, 4035354856), (8, 2522096785), (10, 2017677428), (13, 1552059560), (20, 1008838714), (26, 776029780), (40, 504419357), (52, 388014890), (65, 310411912), (104, 194007445), (130, 155205956), (260, 77602978), (520, 38801489)]